CA2502232C - Identification document and related methods - Google Patents
Identification document and related methods Download PDFInfo
- Publication number
- CA2502232C CA2502232C CA2502232A CA2502232A CA2502232C CA 2502232 C CA2502232 C CA 2502232C CA 2502232 A CA2502232 A CA 2502232A CA 2502232 A CA2502232 A CA 2502232A CA 2502232 C CA2502232 C CA 2502232C
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- document
- identification document
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- watermark
- information
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- H04N2201/327—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs which are undetectable to the naked eye, e.g. embedded codes
Abstract
The present invention provides methods and systems for authenticating identification documents (100). We also teach an identification document (100) including two or more digital watermarks (27, 60). The watermarks correspond with each other or with indicia carried by the identification document (100). The correspondence can be verified to determine authenticity. We also provide digital watermark detection methods and systems to identify the different watermarks (100) through embedded orientation components. We then focus watermark message-decoding efforts on areas identified as likely including watermark orientation components (27, 60). In one implementation we provide a watermark detection trigger to identify so-called legacy documents. The trigger may indicate the presence or expected absence of a digital watermark. In other implementations we provide a versatile document authenticator to toggle between watermarking and non-watermarking authentication processes depending on a detection trigger (100).
Description
rdentlficatIon Document and Related Methods
[0002] This application is related to assignee's U.S. Patent Nos. 7,013,021, 6,614,914, 6,408,082, 6,804,378, 6,636,615, 6,975,744, 6,574,350, 6,389,151 and 5,841,886.
Field of the Invention
Field of the Invention
[0003] The present invention relates to authenticating and securing identification documents through digital watermarking_ Background and Summary of the Invention
[0004] The use of identification documents is pervasive. Identification documents are used on a daily basis -- to prove identity, to verify age, to access a secure area, to evidence driving privileges, to cash a check, and so on. Airplane passengers are required to show an identification document during check in, and sometimes at security screening and prior to boarding their flight. We also live in an ever-evolving cashless society. Identification documents are used to make payments, access an automated teller machine (ATM), debit an account, or make a payment, etc. Many industries require that their employees carry photo ID on the job.
[0005] For the purposes of this disclosure, identification documents are broadly defined and may include, e.g., credit cards, bank cards, phone cards, passports, driver's licenses, network access cards, employee badges, debit cards, security cards, visas, immigration documentation, national ID cards, citizenship cards, social security cards, security badges, certificates, identification cards or documents, voter registration cards, police ID cards, border crossing cards, legal instruments or documentation, security clearance badges and cards, gun permits, gift certificates or cards, labels or product packaging, membership cards or badges, etc., etc. Also, the terms "document,"
"card,"
and "documentation" are used interchangeably throughout this patent document.
Identification documents are also sometimes interchangeably referred to as "security documents," "ID documents," "photo-IDs" and "photo ID documents".
"card,"
and "documentation" are used interchangeably throughout this patent document.
Identification documents are also sometimes interchangeably referred to as "security documents," "ID documents," "photo-IDs" and "photo ID documents".
[0006] With reference to FIG. 1, an identification document 10 includes a "card-shaped" substrate 21, historically made from a material such as paper or plastic, but now even made from synthetics such as Teslina (Teslin is available from PPG
Industries, One PPG Place, Pittsburgh, PA 15272 USA). Identification document includes a photograph 14 and various data 12, e.g., such as textual information, graphics, a screened-back or hidden image, bar codes, biometric information (e.g., a fingerprint), text information (e.g., name, address, birth date, ID number, etc.), or the like. Of course both sides of substrate 21 can receive printing or engraving.
Other suitably interchangeable features and materials are found, e.g., in assignee's U.S. Patent Application No. 10/330,032, filed December 24, 2002 (published as US 2003-Al).
Industries, One PPG Place, Pittsburgh, PA 15272 USA). Identification document includes a photograph 14 and various data 12, e.g., such as textual information, graphics, a screened-back or hidden image, bar codes, biometric information (e.g., a fingerprint), text information (e.g., name, address, birth date, ID number, etc.), or the like. Of course both sides of substrate 21 can receive printing or engraving.
Other suitably interchangeable features and materials are found, e.g., in assignee's U.S. Patent Application No. 10/330,032, filed December 24, 2002 (published as US 2003-Al).
[0007] The printed substrate 21 is usually laminated. The laminate typically includes a plastic, polyester or polycarbonate-based top sheet 23 and bottom sheet 25 that respectively overlay the top and bottom of the substrate 21. Heat and/or adhesives and pressure are used to bond the laminate sheets 23 and 25 with the substrate 21.
Or a laminate can include a pouch into which the substrate 21 slips. Again, heat and/or adhesives and pressure are used to bond the substrate 21 with a pouch laminate. The laminates provide a protective covering for the printed substrate and provide a level of protection against unauthorized tampering. (For example, a laminate would have to be removed to alter the printed information and then subsequently replaced after the alteration.). A laminate layer 23 or 25 may optionally carry information like a card bearer's signature or security features.
Or a laminate can include a pouch into which the substrate 21 slips. Again, heat and/or adhesives and pressure are used to bond the substrate 21 with a pouch laminate. The laminates provide a protective covering for the printed substrate and provide a level of protection against unauthorized tampering. (For example, a laminate would have to be removed to alter the printed information and then subsequently replaced after the alteration.). A laminate layer 23 or 25 may optionally carry information like a card bearer's signature or security features.
[0008] In some implementations, information may also be optically or magnetically stored on recording media (e.g., magnetic stripe 27, or optical memory or electronic circuitry ¨ not shown in FIG. 1) carried by the laminate 25. Of course the recording media can be alternatively carried by substrate 21 or laminate 23.
[0009] We note that the present invention encompasses ID documents including more or less features and layers than are illustrated in FIG. 1. Additional features may include graphics printed in dual color optically variable ink, microprinting text, so-called "ghost images," information and images printed in UV inks, and security features such as those disclosed in, e.g., assignee's U.S. Patent Application No.
10/170,223 (published as US 2003-0031340 Al).
[0010] Identification documents can also include information such as a bar code (e.g., which may contain information specific to the person whose image appears in the photographic image, and/or information that is the same from ID document to ID
document), variable personal information (e.g., such as an address, signature, and/or birth date, biometric information associated with the person whose image appears in the photographic image, e.g., a fingerprint), a magnetic stripe (which, for example, can be on the a side of the ID document that is opposite a side with a photographic image), and various security features (e.g., a security pattern like a printed pattern comprising a tightly printed pattern of finely divided printed and unprinted areas in close proximity to each other, such as a fine-line printed security pattern as is used in the printing of banknote paper, stock certificates, and the like). Of course, an identification document can include more or less features.
[0010] Identification documents can also include information such as a bar code (e.g., which may contain information specific to the person whose image appears in the photographic image, and/or information that is the same from ID document to ID
document), variable personal information (e.g., such as an address, signature, and/or birth date, biometric information associated with the person whose image appears in the photographic image, e.g., a fingerprint), a magnetic stripe (which, for example, can be on the a side of the ID document that is opposite a side with a photographic image), and various security features (e.g., a security pattern like a printed pattern comprising a tightly printed pattern of finely divided printed and unprinted areas in close proximity to each other, such as a fine-line printed security pattern as is used in the printing of banknote paper, stock certificates, and the like). Of course, an identification document can include more or less features.
[0011] Another example of an identification document is one including a core layer (which can be pre-printed), such as a light-colored, opaque material, e.g., TESL1N, which is available from PPG Industries) or polyvinyl chloride (PVC) material.
The core can be laminated with a transparent material, such as clear PVC to form a so-called "card blank". Information, such as variable personal information (e.g., photographic information, address, name, document number, etc.), is printed on the card blank using a method such as Dye Diffusion Thermal Transfer ("D2T2") printing (e.g., as described in commonly assigned U.S. Patent No. 6,066,594), laser or ink jet printing, offset printing, etc. The information can, for example, comprise an indicium or indicia, such as the invariant or nonvarying information common to a large number of identification documents, for example the name and logo of the organization issuing the documents.
Any known process capable of forming the indicium may be used to form the information.
The core can be laminated with a transparent material, such as clear PVC to form a so-called "card blank". Information, such as variable personal information (e.g., photographic information, address, name, document number, etc.), is printed on the card blank using a method such as Dye Diffusion Thermal Transfer ("D2T2") printing (e.g., as described in commonly assigned U.S. Patent No. 6,066,594), laser or ink jet printing, offset printing, etc. The information can, for example, comprise an indicium or indicia, such as the invariant or nonvarying information common to a large number of identification documents, for example the name and logo of the organization issuing the documents.
Any known process capable of forming the indicium may be used to form the information.
[0012] To protect the information that is printed, an additional layer of transparent overlaminate can be coupled to the card blank and printed information, as is known by those skilled in the art. Illustrative examples of usable materials for overlaminates include biaxially oriented polyester or other optically clear durable plastic film.
[0013] Of course, there are many other identification documents that include different structures, features and materials. These other identification documents can be suitably interchanged with the identification documents described herein. The inventive digital watermarking techniques disclosed herein will similarly benefit these other documents as well.
[0014] An identification document may include a digital watermark. Digital watermarking is a process for modifying physical or electronic media to embed a machine-readable code into the media. The media may be modified such that the embedded code is imperceptible or nearly imperceptible to the user, yet may be detected through an automated detection process. In some of our preferred embodiments, an identification document includes two or more digital watermarks.
[0015] Digital watermarking systems typically have two primary components: an encoder that embeds the digital watermark in a host media signal, and a decoder that detects and reads the embedded digital watermark from a signal suspected of containing a digital watermark (a suspect signal). The encoder embeds a digital watermark by altering the host media signal. The alterations usually take the form of altered signal values, such as slightly changed pixel values, luminance, colors, changed DCT
coefficients, altered signal values or selective placement or signal tweaks, etc.
However, a watermark can also be manifested in other ways, such as changes in the surface microtopology of a medium, localized chemical changes (e.g. in photographic emulsions), localized variations in optical density, localized changes in luminescence, etc. The surface texture of an object may be altered to create a watermark pattern. This may be accomplished by manufacturing an object in a manner that creates a textured surface or by applying material to the surface (e.g., an invisible film or ink) in a subsequent process. The watermark reading component analyzes content to detect whether a watermark pattern is present. In applications where the watermark encodes information, the reading component extracts this information from the detected watermark. The reading component analyzes a suspect signal to detect whether a digital watermark is present. The reading component can be hosted on a wide variety of units ranging from tethered or wireless reader devices, conventional personal computers, network servers, cell phones including cameras, to fully mobile readers with built-in displays. Image data corresponding to a watermarked surface of an identification document is read and decoded by this reader to obtain a watermark's information or "payload".
coefficients, altered signal values or selective placement or signal tweaks, etc.
However, a watermark can also be manifested in other ways, such as changes in the surface microtopology of a medium, localized chemical changes (e.g. in photographic emulsions), localized variations in optical density, localized changes in luminescence, etc. The surface texture of an object may be altered to create a watermark pattern. This may be accomplished by manufacturing an object in a manner that creates a textured surface or by applying material to the surface (e.g., an invisible film or ink) in a subsequent process. The watermark reading component analyzes content to detect whether a watermark pattern is present. In applications where the watermark encodes information, the reading component extracts this information from the detected watermark. The reading component analyzes a suspect signal to detect whether a digital watermark is present. The reading component can be hosted on a wide variety of units ranging from tethered or wireless reader devices, conventional personal computers, network servers, cell phones including cameras, to fully mobile readers with built-in displays. Image data corresponding to a watermarked surface of an identification document is read and decoded by this reader to obtain a watermark's information or "payload".
[0016] Several particular digital watermarking techniques have been developed.
The reader is presumed to be familiar with the literature in this field. Some techniques for embedding and detecting imperceptible watermarks in media signals are detailed in assignee's U.S. Patent No. 6,614,914, U.S. Patent No. 6,122,403 and PCT patent application PCT/US02/20832 (published in English as WO 03/005291).
The reader is presumed to be familiar with the literature in this field. Some techniques for embedding and detecting imperceptible watermarks in media signals are detailed in assignee's U.S. Patent No. 6,614,914, U.S. Patent No. 6,122,403 and PCT patent application PCT/US02/20832 (published in English as WO 03/005291).
[0017] In assignee's U.S. Patent No. 5,841,886 techniques and methods are disclosed to detect alteration of photo ID documents, and to generally enhance the confidence and security of such systems. In this regard, reference is made to FIG. 2, which depicts a photo-ID card or document 1000 which may be, for example, a passport or visa, driver's license, credit card, government employee identification, or a private industry identification badge. For convenience, such photograph-based identification documents will be collectively referred to as photo ID documents.
[0018] The photo ID document includes a photograph 1010 that is attached to the document 1000. Printed, human-readable information 1012 is incorporated in the document 1000, adjacent to the photograph 1010. Machine-readable information, such as that known as "bar code" may also be included adjacent to the photograph.
Generally, the photo ID document is constructed so that tampering with the document (for example, swapping the original photograph with another) should cause noticeable damage to the card. Nevertheless, skilled forgers are able to either alter existing documents or manufacture fraudulent photo ID documents in a manner that is extremely difficult to detect. Security associated with the use of photo ID
documents is enhanced by supplementing the photographic image with encoded information (which information may or may not be visually perceptible), thereby facilitating the correlation of the photographic image with other information concerning the person, such as the printed information 1012 appearing on the document 1000.
Generally, the photo ID document is constructed so that tampering with the document (for example, swapping the original photograph with another) should cause noticeable damage to the card. Nevertheless, skilled forgers are able to either alter existing documents or manufacture fraudulent photo ID documents in a manner that is extremely difficult to detect. Security associated with the use of photo ID
documents is enhanced by supplementing the photographic image with encoded information (which information may or may not be visually perceptible), thereby facilitating the correlation of the photographic image with other information concerning the person, such as the printed information 1012 appearing on the document 1000.
[0019] A photograph 1010 may be produced from a raw digital image to which is added a master snowy image as described in patent 5,841,886. A central network and point-of-sale reading device (which device, in the present embodiment, may be considered as a point-of-entry or point-of-security photo ID reading device), would essentially carry out the same processing as described with that embodiment, including the central network generation of unique numbers to serve as indices to a set of defined orthogonal patterns, the associated dot product operation carried out by the reader, and the comparison with a similar operation carried out by the central network. If the numbers generated from the dot product operation carried out by the reader and the central network match, in this embodiment, the network sends the OK to the reader, indicating a legitimate or unaltered photo ID document.
[0020] It will be appreciated that the information encoded into the photograph may correlate to, or be redundant with, the readable information 1012 appearing on the document. Accordingly, such a document could be authenticated by placing the photo ED document on a scanning system, such as would be available at a passport or visa control point. The local computer, which may be provided with the universal code for extracting the identification information, displays the extracted information on the local computer screen so that the operator is able to confirm the correlation between the encoded information and the readable information 1012 carried on the document.
It will be appreciated that the information encoded with the photograph need not necessarily correlate with other information on an identification document.
For example, the scanning system may need only to confirm the existence of the identification code so that the user may be provided with a "go" or "no go"
indication of whether the photograph has been tampered with. It will also be appreciated that the local computer, using an encrypted digital communications line, could send a packet of information to a central verification facility, which thereafter returns an encrypted "go"
or "no go" indication.
It will be appreciated that the information encoded with the photograph need not necessarily correlate with other information on an identification document.
For example, the scanning system may need only to confirm the existence of the identification code so that the user may be provided with a "go" or "no go"
indication of whether the photograph has been tampered with. It will also be appreciated that the local computer, using an encrypted digital communications line, could send a packet of information to a central verification facility, which thereafter returns an encrypted "go"
or "no go" indication.
[0021] In another implementation of the '886 patent, it is contemplated that the identification code embedded in the photograph may be a robust digital image of biometric data, such as a fingerprint of the card bearer, which image, after scanning and display, may be employed for comparison with the actual fingerprint of the bearer in very high security access points where on-the-spot fingerprint recognition systems (or retinal scans, etc.) are employed.
[0022] We disclose herein methods, systems and identification document to improve or provide alternative techniques for confronting fraudulent use of identification documents. Fraudulent use of identification documents may occur where, for example, an otherwise legitimate identification document is modified such that the original photograph is swapped with that of another person, thereby enabling the other person to 1() masquerade, at least temporarily, under the guise of the original identification document holder.
[0023] Even in the absence of photo swapping or alteration, it is oftentimes difficult to confirm by inspection that the individual depicted in the photograph of the identification card is indeed the bearer of the card.
[0024] One aspect of this invention provides enhanced security and certainty in the use of photo identification documents.
[0025] Another aspect provides methods and systems for authenticating and securing identification documents using multiple digital watermarks or multiple watermark components.
[0026] According to still another aspect of the present invention, a security document includes a substrate and a first graphic carried by the substrate. The first graphic conveys a photographic image to human viewers thereof, and the first graphic is steganographically encoded to convey first plural bits of data recoverable by computer analysis of the first graphic. The security document also includes a second graphic carried by the substrate. The second graphic conveys a visual image to human viewers thereof, and the second graphic is steganographically encoded to convey second plural bits of data recoverable by computer analysis of said second graphic. The steganographically encoded first plural bits of data and the steganographically encoded second plural bits of data cooperate to verify authenticity of the security document.
[0027] According to still another aspect of the invention, a method is provided to detect swapping of first artwork from a first identification document with second artwork on a second identification document. The swapping results in the first artwork being carried on the second identification document instead of the second artwork. The first artwork includes a first digital watermark embedded therein, and the second identification document includes a second digital watermark embedded in a first region.
The method includes: receiving scan data associated with at least a portion of the first artwork and at least a portion of the first region; analyzing the scan data to detect the first digital watermark and the second digital watermark; and comparing the first digital watermark with the second digital watermark to detect swapping of the first artwork with the second artwork.
The method includes: receiving scan data associated with at least a portion of the first artwork and at least a portion of the first region; analyzing the scan data to detect the first digital watermark and the second digital watermark; and comparing the first digital watermark with the second digital watermark to detect swapping of the first artwork with the second artwork.
[0028] Another aspect of the present invention is a security document including a substrate and a first graphic carried by the substrate. The first graphic conveys a photographic image to human viewers thereof, and the first graphic is steganographically encoded to convey first plural bits of digital data recoverable by computer analysis of said first graphic. The security document also includes a second graphic, the second graphic conveying a visual image to human viewers thereof.
The security document also includes a detection trigger. The detection trigger serves to indicate a presence of steganographic encoding. The second graphic is steganographically encoded to convey second plural bits of digital data recoverable by computer analysis of said second graphic, wherein the steganographically encoded first plural bits of digital data and the steganographically encoded second plural bits of digital data cooperate to verify authenticity of the security document.
The security document also includes a detection trigger. The detection trigger serves to indicate a presence of steganographic encoding. The second graphic is steganographically encoded to convey second plural bits of digital data recoverable by computer analysis of said second graphic, wherein the steganographically encoded first plural bits of digital data and the steganographically encoded second plural bits of digital data cooperate to verify authenticity of the security document.
[0029] Still another aspect of the present invention is a method of identifying a first area and a second area of a printed document that are likely to include, respectively, a first digital watermark and a second digital watermark. The first digital watermark includes a first orientation component and the second digital watermark includes a second orientation component. The method includes receiving optically scanned image data that corresponds with at least a portion of the printed document;
segmenting the image data into a plurality of image portions; determining an orientation measure relative to a predetermined orientation for each of the image portions;
identifying the first area by associating image portions having a first orientation measure;
and identifying the second area by associating image portions having a second orientation measure
segmenting the image data into a plurality of image portions; determining an orientation measure relative to a predetermined orientation for each of the image portions;
identifying the first area by associating image portions having a first orientation measure;
and identifying the second area by associating image portions having a second orientation measure
[0030] Additional features, aspects and advantages of the present invention will become even more apparent with reference to the following detailed description and accompanying drawings.
Brief Description of the Drawings
Brief Description of the Drawings
[0031] FIG. 1 illustrates an identification document.
[0032] FIG. 2 illustrates another identification document.
[0033] FIG. 3A is a diagram illustrating an authenticating method according to one aspect of the present invention; and FIG. 3B is a flow diagram illustrating an authenticating aspect of the FIG. 3A diagram.
[0034] FIG. 4 illustrates an authenticating method according to still another aspect of the present invention.
[0035] FIG. 5 is a flow diagram illustrating a versatile authentication process, which can operate in different authentication modes depending on a watermark detection trigger.
[0036] FIG. 6 illustrates an identification document including two areas, with each area hosting a different digital watermark.
[0037] FIG. 7 illustrates image capture of the FIG. 6 identification document.
[0038] FIGS. 8A-8C illustrate window-based detection.
[0039] FIGS. 9A and 9B illustrate histograms, which classify orientations of different image windows.
[0040] FIGS. 10A-10D illustrate classification of image windows based at least on a watermark orientation component include a translation measure.
[0041] FIG. 11A illustrates two document areas that likely include watermark information.
[0042] FIG. 11B illustrates an isolated window.
[0043] FIG. 12 illustrates a histogram classification of image windows based as least in part on digital watermark strength.
Detailed Description Introduction
Detailed Description Introduction
[0044] The following detailed description is grouped into four main sections.
The grouping is not meant to limit the scope of the present invention, and is merely provided for the reader's convenience. Indeed, we anticipate that disclosed methods, systems and identification documents found under one section heading can be readily combined with methods, systems and identification documents under other section headings. The main sections include: i) Authenticating Identification Documents with Digital Watermarks; ii) Advantages of Watermarking Identification Documents;
iii) Detecting Media Areas Likely of Hosting Watermarks; and iv) Introduction to Appendix A.
Authenticating Identification Documents with Digital Watermarks First Embodiment ¨ Forensics and Proof of Compliance
The grouping is not meant to limit the scope of the present invention, and is merely provided for the reader's convenience. Indeed, we anticipate that disclosed methods, systems and identification documents found under one section heading can be readily combined with methods, systems and identification documents under other section headings. The main sections include: i) Authenticating Identification Documents with Digital Watermarks; ii) Advantages of Watermarking Identification Documents;
iii) Detecting Media Areas Likely of Hosting Watermarks; and iv) Introduction to Appendix A.
Authenticating Identification Documents with Digital Watermarks First Embodiment ¨ Forensics and Proof of Compliance
[0045] As discussed above with respect to our '886 patent, a photo-ID can be enhanced through embedding data therein. Data can be embedded in, e.g., a graphic or background of the photo-ID. More preferable, however, is to embed the data in a photograph image. The watermark is preferably robust, in that it survives scanning and printing. In some implementations of this embodiment, the watermark is repeated or redundantly embedded throughout an image or document.
[0046] Although sometimes redundantly embedded across an entire document surface, a watermark can be embedded in a particular region of the document if desired (e.g., only in a photograph or a graphic). In an area-based embedding implementation, we can use a mask to identify areas for embedding (or areas that will not receive embedding). The watermark is embedded in identified areas (or is embedded to avoid areas). The watermark can also include a so-called orientation component. An orientation component is helpful in resolving issues of image distortion such as scaling, rotation, translation, etc. In some cases the orientation component comprises a separate digital watermark.
[0047] A digital watermark can be used to provide a machine-readable means to detect fraud due to photo swapping and so-called card "simulation." The watermark preferably includes a payload or message. The message, once decoded, can be used to provide a visual check for alterations. The decoded message or payload can be displayed, e.g., via a graphical user interface, for use by an inspector or law enforcement officer. For example, if the payload includes the cardholder's date of birth, the payload date of birth can be checked against the corresponding date of birth as printed on the photo-ID. The crosscheck can even be automated. The payload information can include additional information such as driver's license number, jurisdiction code (e.g., code or text indicating which state, agency or company issued the photo-ID), personal information (address, age, sex, weight, height, etc.), driver's insurance information (or a link thereto), unique identifier, etc.
[0048] An advantage of this implementation is that if a watermarked photograph is copied onto another photo-ID document, the watermark provides a telltale sign pointing to the originating card. Once a watermark photograph is determined to be non-compliant with the text or information provided on the document, e.g., the payload data does not correspond with the printed or stored information, the payload can be used to identify the originating document ¨ providing a forensic tracking mechanism.
(If the payload includes the originating driver's license number or other unique identifier, such payload information can be used to positively identify the originating document.).
(If the payload includes the originating driver's license number or other unique identifier, such payload information can be used to positively identify the originating document.).
[0049] Another advantage of this implementation is that a machine record for inspecting the photo-ID can be used as a "proof of compliance" or proof of identification inspection. To facilitate such, the watermarked photo-ID is presented to an optical sensor. The optical sensor captures an image of the photo-ID and produces scan data corresponding to such. A watermark detector analyzes the scan data to find and decode the digital watermark embedded in the photo-ID. The detector obtains the payload (e.g., a unique identifier or driver's license number) and a check for the correspondence between the payload and information carried by the card is made. The payload can be stored in a repository or list to evidence that the photo-ID
was checked or inspected.
was checked or inspected.
[0050] In an optional implementation of this embodiment, the payload is cross-related to information carried in a magnetic stripe on the card. Validating the card then requires two reads ¨ one an optical read of the watermark on the face of the card, and a swipe of the magnetic stripe through a magnetic-stripe reader. The magnetic stripe information is decoded and compared with the watermark payload. This implementation has the benefit of locking the watermarked information to the magnetic stripe, but it requires an additional read (e.g., for the magnetic stripe) of the card.
Second Embodiment ¨ Multiple Watermarks
Second Embodiment ¨ Multiple Watermarks
[0051] Additional security is added to an identification document by providing first and second digital watermarks on the identification document. For example, a first digital watermark is embedded in first region of the identification document like in a photograph, artwork, graphic, seal, or image (e.g., ghost image). And a second digital watermark is provided in a second region of the identification card. For example, the second digital watermark is embedded in a background pattern or tint, line-art (see, e.g., assignee's U.S. Patent No. 6,449,377) or in text, artwork, seal, images or graphics carried by the identification document. The first and second watermarks also may include a so-called orientation component. An orientation component is helpful to resolve image distortion such as rotation, scale and translation. (We note that the second watermark can be embedded using the same or different embedding protocol as the first watermark.). Although not necessary, the first and second watermarks are preferably redundantly embedded or tiled in their respective embedding regions.
[0052] The first digital watermark preferably includes a first payload or first message bits carrying or relating to a first set of information, and the second digital watermark preferably includes a second payload or second message bits carrying or relating to a second set of information. The payloads may include plural-bit payload structure. The payloads can have fixed and variable portions and/or error correction bits. In some cases a payload will include a checksum or error bits to ensure the validity of a payload or a cross-correlation between the watermark payloads. Examples of watermark payloads are shown, e.g., in assignee's U.S. Published Patent Application No.
10/193,719, filed July 10, 2002 (published as US 2003-0033530 Al) and in U.S.
Patent No. 6,614,914.
10/193,719, filed July 10, 2002 (published as US 2003-0033530 Al) and in U.S.
Patent No. 6,614,914.
[0053] The first set of information preferably relates to the holder of the identification card (hereafter "cardholder") and/or to the issuing authority (e.g., state DMV
or company) or jurisdiction. For example, the first set of information may include "related information" such as a unique identifier that is associated with the issuer or cardholder, a date of birth, jurisdiction code, identification document number, name, address, physical characteristics (hair color, weight, biometric, sex, etc.), issue date, restrictions (e.g., age restrictions, driving limitations, etc.), a hash (e.g., a reduced-bit representation) of such related information, and/or a combination of the above related information.
or company) or jurisdiction. For example, the first set of information may include "related information" such as a unique identifier that is associated with the issuer or cardholder, a date of birth, jurisdiction code, identification document number, name, address, physical characteristics (hair color, weight, biometric, sex, etc.), issue date, restrictions (e.g., age restrictions, driving limitations, etc.), a hash (e.g., a reduced-bit representation) of such related information, and/or a combination of the above related information.
[0054] The second set of information, which is carried by or related to the second payload, preferably corresponds with the first set of information. The term "corresponds" in this context is used broadly and may range, e.g., from an exact match to a loose association within a predetermined tolerance.
[0055] In a first implementation, the second set of information corresponds exactly with the first set of information. The sets of information are compared to determine authenticity. In a second implementation, the second set of information includes a subset of the first set of information. The subset is cross-correlated with the first set of information to determine authenticity. In another implementation, the first set of information includes a key to decrypt the second set of information (or vise versa). (We note that an encrypted watermark payload may optionally be decrypted with a key contained in a watermark detector.). In still another implementation, the second set of information includes at least some information that should correspond with information carried by a magnetic stripe or barcode (see a related discussion under the First Embodiment, above). In yet another implementation, the second set of information includes both a subset of the first information and additional information.
For example, the subset may include the birth date and document number, while the additional information may correspond with text printed on the document. Or the subset may include simply the document number (or portion thereof), or the bearer's birth date and date of issue. Of course, many other combinations of related information can be provided. For example, the sets of information may be targeted to detect an age or name alteration (e.g., by including age or name information in one or both of the sets of information). In some cases the sets of information includes hashes or reduced bit representations of information pertaining to the cardholder or printed text information.
One hash, perhaps a hash carried by the second set of information, may even represent some or all of the first set of information. In still other implementations a document number is distributed between the first and second sets of information. For example, the first set of information includes a first part of the document number and the second set of information includes the remaining portion of the document number. A
checksum or error bit can be included with the first or second sets of information to ensure that the document number portions correspond in the expected manner.
For example, the subset may include the birth date and document number, while the additional information may correspond with text printed on the document. Or the subset may include simply the document number (or portion thereof), or the bearer's birth date and date of issue. Of course, many other combinations of related information can be provided. For example, the sets of information may be targeted to detect an age or name alteration (e.g., by including age or name information in one or both of the sets of information). In some cases the sets of information includes hashes or reduced bit representations of information pertaining to the cardholder or printed text information.
One hash, perhaps a hash carried by the second set of information, may even represent some or all of the first set of information. In still other implementations a document number is distributed between the first and second sets of information. For example, the first set of information includes a first part of the document number and the second set of information includes the remaining portion of the document number. A
checksum or error bit can be included with the first or second sets of information to ensure that the document number portions correspond in the expected manner.
[0056] To authenticate an identification document including two digital watermarks, a watermark detector reads both watermarks. The first set of information and the second set of information ar' e retrieved from their respective watermark payloads.
(We note that typically only one optical scan is needed to generate scan data, from which both the first and second watermarks are detected from, when the first and second watermarks are provided on the same surface of the identification document.). The first and second sets of information are compared to determine a correspondence. If a correspondence occurs, some or all of the watermark information may be provided to an inspector to facilitate a further check against text alteration. For example, both the date of birth and some data to verify against printed text (e.g., an indication that the 3rd letter of the first name should be "e", and the 2"d letter of the last name should be "t") can be provided to the inspector. Or, in other implementations, a signal is generated to indicate the authenticity of the identification document.
(We note that typically only one optical scan is needed to generate scan data, from which both the first and second watermarks are detected from, when the first and second watermarks are provided on the same surface of the identification document.). The first and second sets of information are compared to determine a correspondence. If a correspondence occurs, some or all of the watermark information may be provided to an inspector to facilitate a further check against text alteration. For example, both the date of birth and some data to verify against printed text (e.g., an indication that the 3rd letter of the first name should be "e", and the 2"d letter of the last name should be "t") can be provided to the inspector. Or, in other implementations, a signal is generated to indicate the authenticity of the identification document.
[0057] FIGS. 3A and 3B are diagrams illustrating another authentication technique for an identification document including digital watermarking. An input device captures an image of an identification document. The identification document includes first and second digital watermarks. The input device conveys data corresponding to a captured image to a watermark reader. The watermark reader can be realized as a programmable computer, which executes software instructions to detect and decode the first and second digital watermarks included in the captured image data. The computer can include a handheld device, laptop, desktop or remote server. (While the input device is illustrated as being tethered to the watermark detector/computer, this aspect of the present invention also contemplates that the input device can wirelessly communicate with the computer or communicate via a network instead. The input device may also be incorporated with the reader, e.g., as in a camera cell phone.). The watermark reader passes decoded watermark information (e.g., payload or message information) to the authenticator. The authenticator can also be realized by software executing on a computer, and in some implementations, the watermark reader includes the authenticator module. The authenticator module determines whether the first and second watermark information corresponds. This determination, in some implementations, involves a crosscheck between a first subset (e.g., birth date) from the first watermark and a first subset from the second watermark (e.g., birth date). In other implementations the authentication determination involves multiple crosschecks between the first and second watermarks. For example, a first subset (e.g., birth date) carried by the first watermark is compared against a first subset (e.g., birth date) of the second watermark, and a second subset (e.g., document number or a portion thereof) of the first watermark is compared against a second subset (e.g., document number or a hash of the document number) of the second digital watermark.
[0058] In an alternative implementation, the authenticator (or watermark reader) passes all or a portion of the watermark information to a computer display (e.g., a computer graphical user interface). Displaying some or all of the watermark information allows an inspector or officer to visually compare the watermark information against information printed on the document. The authenticator outputs an authentication signal to indicate the authentication status of the identification document.
In some cases the signal is conveyed to the display. Here, the authentication signal can be a simple pass or fail signal, or a more detailed response indicating the reason for the failure (e.g., one watermark found but the second one is undetectable). In other cases the signal is conveyed to an audio output device (e.g., audio speaker) to audibly signal the authentication status (e.g., a predetermined sound or audio segment is output if authentic, while another predetermined sound or audio segment is output is not authentic). In other implementations a fail signal is used to trigger a secondary process.
For example, a fail signal is used to spawn a process to obtain additional data from the identification document. The additional data can be retrieved from optical scan data (e.g., OCR, barcode, or image data for another watermark detection attempt), optical or electronic memory, or manual input. The additional data can be used, e.g., to:
i) verify watermark detection failure; ii) authenticate the document through a non-watermarking is process; and/or iii) trigger a forensic analysis of the identification document.
In some cases the signal is conveyed to the display. Here, the authentication signal can be a simple pass or fail signal, or a more detailed response indicating the reason for the failure (e.g., one watermark found but the second one is undetectable). In other cases the signal is conveyed to an audio output device (e.g., audio speaker) to audibly signal the authentication status (e.g., a predetermined sound or audio segment is output if authentic, while another predetermined sound or audio segment is output is not authentic). In other implementations a fail signal is used to trigger a secondary process.
For example, a fail signal is used to spawn a process to obtain additional data from the identification document. The additional data can be retrieved from optical scan data (e.g., OCR, barcode, or image data for another watermark detection attempt), optical or electronic memory, or manual input. The additional data can be used, e.g., to:
i) verify watermark detection failure; ii) authenticate the document through a non-watermarking is process; and/or iii) trigger a forensic analysis of the identification document.
[0059] The authenticator module is further discussed with reference to FIG.
3B. The identification document is preferably considered authentic when both the first and second digital watermarks are recovered and when the first and second watermark information (e.g., sets of information) correspond. The document is considered not authentic when either of these criteria is not met. Of course, as discussed above, a watermark detection failure may be used to trigger another process, like a non-watermark based authentication process.
3B. The identification document is preferably considered authentic when both the first and second digital watermarks are recovered and when the first and second watermark information (e.g., sets of information) correspond. The document is considered not authentic when either of these criteria is not met. Of course, as discussed above, a watermark detection failure may be used to trigger another process, like a non-watermark based authentication process.
[0060] We note that the second embodiment of this section is generally issuing source and document neutral. This means that a first and second digital watermark is used to verify an identification document regardless of the features provided on the card.
Although document neutral, interpretation of the payload bits can vary according to issuer identification. To illustrate, consider a first employee badge issued by a first company and a second employee badge issued by a second company. Each of the first and second employee badges include first and second watermarks embedded therein.
All four of the watermarks (i.e., two from the first badge and two from the second badge) have, e.g., a 72-bit payload. The watermarks include a subset of bits (e.g., 4-12 bits) to designate which company issued the badges or to which company the badges are associated with (e.g., an issuer or client code). The bits are located in a predetermined payload location, so that a detector or an application cooperating with the detector can grab the subset of bits and make a determination of who issued the badge. The watermark detector (or a cooperating software application) interprets the bits as designated for the particular issuer or client. For example, the detector or application can query a data structure, branch into a predetermined block of software code, or interrogate a look-up-table to decide what the bits correspond to.
(For example, for issuer "Ace," a private toolmaker, the first 10 bits are the issuer code, the next 32 bits represent a document number, the next 10 bits represent an issue date or birth date and the last 20 bits represent error correction bits or checksums.
And, for "Beta," a government agency, documents associate with Beta include a payload with the first 10 bits representing the issuer code, the next 20 bits represent a document number, the next 20 represent a security clearance, the next 10 represent an issue date and the last 10 represent error correction bits or checksums.). A watermark may similarly carry data (or a signal feature) to indicate that it is a first or second watermark, or an image frame location indicating where a watermark is located is used to distinguish between a first and second watermark. The payloads fields can be designated or interpreted differently for each of the first and second watermarks, even for watermarks issued by the same issuer.
Although document neutral, interpretation of the payload bits can vary according to issuer identification. To illustrate, consider a first employee badge issued by a first company and a second employee badge issued by a second company. Each of the first and second employee badges include first and second watermarks embedded therein.
All four of the watermarks (i.e., two from the first badge and two from the second badge) have, e.g., a 72-bit payload. The watermarks include a subset of bits (e.g., 4-12 bits) to designate which company issued the badges or to which company the badges are associated with (e.g., an issuer or client code). The bits are located in a predetermined payload location, so that a detector or an application cooperating with the detector can grab the subset of bits and make a determination of who issued the badge. The watermark detector (or a cooperating software application) interprets the bits as designated for the particular issuer or client. For example, the detector or application can query a data structure, branch into a predetermined block of software code, or interrogate a look-up-table to decide what the bits correspond to.
(For example, for issuer "Ace," a private toolmaker, the first 10 bits are the issuer code, the next 32 bits represent a document number, the next 10 bits represent an issue date or birth date and the last 20 bits represent error correction bits or checksums.
And, for "Beta," a government agency, documents associate with Beta include a payload with the first 10 bits representing the issuer code, the next 20 bits represent a document number, the next 20 represent a security clearance, the next 10 represent an issue date and the last 10 represent error correction bits or checksums.). A watermark may similarly carry data (or a signal feature) to indicate that it is a first or second watermark, or an image frame location indicating where a watermark is located is used to distinguish between a first and second watermark. The payloads fields can be designated or interpreted differently for each of the first and second watermarks, even for watermarks issued by the same issuer.
[0061] As an alternative implementation of the second embodiment, a second digital watermark is provided on a different document surface than is the first digital watermark (e.g., the back side of the document). We note that this alternative implementation may require two optical scans to detect both the first and second digital watermarks. This may be less of an issue when the second digital watermark includes information that is used for forensic tracking purposes. For example, the watermark may include information that is tied to the original cardholder. If the second watermark is copied and transferred to a second identification document, the watermark information can be used to trace back to the original cardholder. Similarly, the second watermark may include information pertaining to the issuing location (e.g., which DMV branch office) or original issuing officer.
[0062] A few illustrative combinations are shown below. Of course, these combinations are not meant to limit the scope of this aspect of the invention.
Rather, the combinations are provided by way of example only.
Rather, the combinations are provided by way of example only.
[0063] Al. A method to authenticate an identification document, the identification document comprising a first digital watermark and a second digital watermark, said method comprising the steps of:
receiving an optically captured image of at least a portion of the identification document;
analyzing the optically captured image to detect the first and second digital watermarks;
if either of the first or second digital watermarks is not detected, determining that the identification document is not authentic; and if both of the first and second digital watermarks are detected, comparing the first and second digital watermarks to determine if they correspond.
receiving an optically captured image of at least a portion of the identification document;
analyzing the optically captured image to detect the first and second digital watermarks;
if either of the first or second digital watermarks is not detected, determining that the identification document is not authentic; and if both of the first and second digital watermarks are detected, comparing the first and second digital watermarks to determine if they correspond.
[0064] A2. The method of combination Al, further comprising the step of displaying through a computer based graphical user interface at least a portion of information carried by either the first or second digital watermark, and comparing the displayed information with text printed on the identification document.
[0065] A3. The method of combination Al, wherein the document comprises text printed thereon, and at least a portion of information carried by the first and second digital watermark corresponds to the printed text.
[0066] A4. The method of combination Al, wherein the first digital watermark includes a first plural bit message, and the second digital watermark includes a second plural bit message.
[0067] A5. The method of combination A4, wherein said comparing of the first and second digital watermarks to determine if they correspond comprises comparing at least a portion of the first message with at least a portion of the second message.
[0068] A6. The method of combination A6, wherein at least one of the first message and the second message includes an issuer code, wherein said combination further comprises interpreting the plural bits of at least one of the first message and the second message according to a predetermined format associated with the issuer code.
[0069] A7. The method of combination A4, wherein the first message comprises a first subset and a second subset, and wherein the second message comprises a third subset and a fourth subset.
[0070] A8. The method of combination A7, wherein said comparing of the first and second digital watermarks to determine if they correspond comprises comparing the first subset with the third subset and comparing the second subset with the fourth subset.
[0071] A9. The method of combination A8, wherein said first subset and third subset comprise redundant information.
[0072] A10. The method of combination A8, wherein said first subset and third subset comprise corresponding information.
[0073] All. The method of combination A9, wherein the information corresponds through at least one of a cryptographic permutation, a hash and a predetermined key.
[0074] Bl. An identification document comprising a first graphic and a second graphic, the first graphic comprising a first digital watermark embedded therein having a first plural-bit payload, the second graphic comprising a second digital watermark embedded therein having a plural-bit payload, the identification document further comprising indicia thereon, wherein the first plural-bit payload comprises a representation of at least a portion of the indicia, and wherein the second plural-bit payload comprises information corresponding to the first plural-bit payload.
[0075] B2. The document of Bl, wherein the information comprises the representation.
[0076] B3. The document of Bl, wherein the information comprises at least one of a cryptographic permutation of the information, a hash of the representation, and a portion of the representation.
[0077] B4. The document of Bl, wherein the representation comprises at least one of a hash of the indicia, a redundant version of the indicia and a subset of the indicia.
[0078] B5. The document of Bl, wherein at least one the second payload comprises a checksum to verify the information.
Third Embodiment ¨ Fragile Watermarks
Third Embodiment ¨ Fragile Watermarks
[0079] A fragile or semi-fragile watermark is provided to any of the first and second embodiments as either a watermark replacement or to augment the above implementations. For example, in the second embodiment, a fragile watermark may be used as either the first or second watermark or as a third watermark component. In some implementations we preferably use our out-of-phase embedding techniques, e.g., as disclosed in PCT/US02/20832 (published in English as WO 03/005291), to embed a fragile watermark. It will be appreciated that a fragile watermark is designed to be lost or to predictably degrade upon certain types of signal processing. A semi-fragile wateiluark is designed to withstand normal signal processing, but is destroyed or predictably degrades upon malicious attacks.
[0080] The addition of a fragile or semi-fragile watermark adds protection against anticipated fraud scenarios by providing alerts when copies are made.
Alteration in conjunction with card copying can be detected from the absence or condition of the io _____ fragile watel niark.
Fourth Embodiment ¨ Linking [O081] In our fourth embodiment we provide a machine-readable link to related information. The machine-readable link is preferably provided via a digital watermark payload or identifier. The identifier can include a unique number that is used to interrogate a database or access a remote resource. In some cases the identifier includes a URL or a code that is used to access an appropriate URI_ In a driver's license scenario, a digital wateithark includes a link to an insurance database. The database includes data records evidencing that a cardholder does or does not have car insurance.
In other cases, the digital watermark includes a link to a DMV database, to allow verification of information printed on the identification document, and perhaps a photograph of the cardholder. The database cardholder can be compared against the person presently holding the card. A "photo swap" can be further detected from comparison of a database photograph with a photograph carried on the card and a visual inspection of the current cardholder. The techniques discussed in assignee's U.S.
Patent No. 6,947,571, and in U.S. Patent 6,408,331 can be suitable interchanged with this linking aspect of the present invention.
Fifth Embodiment - Legacy Detection [0082] Our fifth embodiment relates generally to handling ID documents including so-called legacy ID documents. The term legacy is used to generally refer to documents, which were previously produced with or without a particular feature like a digital watermark, but which differ in some manner from newly produced documents (e.g., they have or lack the feature). Consider a passport-issuing scenario in which renewal dates are spaced far apart (e.g., 10 years). Unless a total recall of old passports is issued, the population of outstanding passports will include both old passports (e.g., legacy documents) and new passports (e.g., which may include digital watermarking).
[0083] A challenge results for an ID document authentication process that authenticates a population of ID documents including both legacy documents (e.g., with no watermarking) and watermarked documents. To address this challenge we provide methods and systems to determine whether a digital watermark should be present in a document or whether the document was produced prior to the introduction of watermark embedding.
[0084] Assignee's U.S. Published Patent Application No. US 2002-0080994 Al discusses a situation where a smart card carries information to trigger a watermark reader to look for a digital watermark. The trigger handles a case of legacy cards. In other words, the trigger serves as an indication to a watermark reader to check for a digital watermark. This allows reading new and legacy documents by the same reader.
[0085] We expand these techniques to further help differentiate between watermarked and non-watermarked ID documents, and/or to decide whether to search for a digital watermark on an ID document.
[0086] With reference to FIG. 4, ID document 100 includes a plurality of features including machine-readable features. The machine-readable features may include, e.g., a barcode (e.g., 1 or 2D barcodes) 60, magnetic stripe 27, optical memory (not shown), electronic circuitry (not shown), text for optical character recognition, etc., etc.
[0087] In a first implementation a machine readable feature includes a watermark search or detection trigger. For example, an issue date, or bits corresponding to an issue date, is stored in a magnetic stripe, optical memory, a barcode or other machine-readable indicia. The issued data serves as a "trigger" to evidence whether and ID
document should or should not including watermarking.
[0088] With reference to FIG. 4, a reader, e.g., a barcode reader, a magnetic stripe reader, optical memory reader, optical character recognizer (OCR), etc., obtains a watermark trigger (e.g., issue date). Instead of an automated reader as shown in FIG. 4, an operator manually enters the trigger, e.g., manually enters the issue date.
Of course, other information may trigger a watermark detection process like an expiration date, issuer code or jurisdictional identifier.
[0089] An authenticator (e.g., a processor under the control of software) uses the trigger to determine whether to carry out a watermark-based authentication procedure.
For example, the issue date may correspond with a date that indicates that a digital watermark or a plurality of digital watermarks should be present on an authentic ID
document. If so, the authenticator directs a digital watermark verification process, like is discussed in the above embodiments, to determine whether a digital watermark is present. Or the issue date may indicate that the ID document was produced before digital watermarks were rolled out into production (e.g., indicating a so-called legacy card). The authenticator then skips or disables a watermark detection process and/or authenticates the ID document using a different authentication technique.
[0090] In an alternative, but related, implementation, an authenticator directs a watermark detector to analyze optical scan data corresponding to an ID
document. The scan data is searched for a digital watermark or for a plurality of digital watermarks. If the watermark detector is unable to find a digital watermark, the authenticator looks for a legacy indicator. For example, an issue date or expiration date is used to determine whether the BD document is a legacy document; or an operator is prompted to enter an issue or expiration date, or to enter a determination as to whether the ID
document is a legacy card.
1() [0091] In another implementation we check for a legacy indicator (e.g., issue date) regardless of whether a watermark is detected. This implementation addresses a counterfeiting scenario where a watermarked feature (e.g., a watermarked photograph) is lifted from an authentic watermarked ID document and pasted onto a legacy document that should not include a digital watermark. If a watermark is found, but the , legacy indicator suggests that a watermark should not be present, the ID
document is considered suspect.
[0092] A client code can be combined with an issue date or expiration date to indicate which documents should or should not include digital watermarks. A "client code" is broadly used herein and may include, e.g., a code to identify a particular client or a particular type of identification document. The client code can be associated with a particular issue or legacy date, to help identify whether an identification document should or should not include digital watermarking. For example, a client code for a sports arena can be used to signal that all employee badges issued after January 1, 2003 should include a digital watermark or a plurality of digital watermarks. And a client code for an airport tarmac crew can be used to signal that all security badges issued after, e.g., April 15, 2003 should include a digital watermark or a plurality of digital watermarks. A magnetic stripe or barcode (or other machine-readable feature) carries the client code. An authenticator uses the client code to make a determination, for a particular client, as to whether a digital watermark should be present. (An authenticator can manage various client codes and relevant legacy dates via, e.g., a look-up table, software programming or by accessing a local or remote database.). By way of further illustration, an authenticator receives the airport's tarmac crew client code from a security badge. The issue date for the security badge is March 11, 2003. The authenticator then knows that a digital watermark should not be present. Or the authenticator receives a client code corresponding to the sports arena. The corresponding employee badge was issued on June 23, 2003. The authenticator then expects to find digital watermarking on the employee badge. Of course, client codes can be assigned to other entities, like states, nations, companies, etc.
[0093] An authenticator is provided in another implementation to operate primarily between two different modes. Consider FIG. 5, where a versatile authentication process toggles between two authentication branches depending on a watermark detection trigger. The process is carried out, e.g., through a processor or electronic processing circuitry controlled by software. The trigger is analyzed to determine whether an ID
document is expected to include digital watermarking embedded therein. If watermarking is expected, optical scan data is analyzed to recover the watermarking. In a two-watermark implementation, payload data is obtained from each of the two watermarks. The payload data, or subsets of the payload data, is compared to determine whether the document is authentic. Of course, if the watermarking is not recoverable, the document is considered suspect (e.g., potentially a counterfeit or unauthorized document).
[0094] If the trigger indicates that the ID document is not expected to include watermarking then the ID document is authenticated using a non-watermarking technique. For example, in one implementation the issue or expiration date (with perhaps a client code) is used as a trigger. If the issue date indicates that watermarking is not expected, another authentication clue, like a bearer's birth date, is obtained from the ID document. A birth date can be machine-read, e.g., from a magnetic stripe, optical memory, electronic circuitry, and/or barcode (e.g., PDF-417, 1-D
barcode, etc.).
The birth date can also be obtained from a remote repository, e.g., which is interrogated with a document number (e.g., driver's license number). A birth date obtained from such methods (e.g., machine-read, remote access, etc.) is referred to as a "stored birth date." The stored birth date is then cross-correlated with a birth date that is printed or otherwise carried on the ID document. The printed or otherwise carried birth date is called a "carried birth date." In some cases the carried birth date is carried via a machine-readable feature. For example, the stored birth date is conveyed through a barcode, while the carried birth date is carried by a magnetic stripe.
Retrieving the carried birth date for cross-correlation with the stored birth date can be machine-aided (e.g., with OCR input of a printed birth date), or can be aided by an operator entering the birth date as printed on the ID document. The cross-correlation correlates the stored birth date with the carried birth date. The document is considered authentic when the carried and the stored birth dates correspond. Of course, if either (or both) of the carried or stored birth dates is not recoverable, or is not obtained, the document is considered suspect. Thus, this implementation provides a watermark readable/non-readable authenticator. (Instead of a birth date, other bearer or document specific information like an address (or a hash of an address), name (or hash of a name) or document number (or hash of a document number) can be suitably interchanged.
The term "hash" in this context implies a reduced-bit representation of a larger number, value or character string.) [0095] In still further implementations we add or change a feature on an ID
document to signal that the ID document includes a digital watermark. For example, we shift or reposition a photograph carried by the ED document. Instead of positioning the photograph in the upper, left hand corner of the document, we position the photograph in the lower right hand corner, or we offset the photograph by a predetermined spacing.
Or we print text (e.g., birth date) in a color (e.g., green) or with a different font. Still further we can place a machine-readable feature in artwork (e.g., a predetermined frequency response due to repetitive spacing of artwork features or lines).
These features can be used to trigger (either manually or automatically) watermark detection.
Or we can add a predetermined laminate, perhaps embossed or laser engraved features, which can be used to signal watermark detection. Related is a certain type of card stock ¨ perhaps textured with machine-readable code ¨ that signals digital watermarking.
Indeed, most of the security features detailed in Appendix A can be used to signal the presence of a digital watermark. In still further implementations, we add a feature that can be pattern recognized. For example, we add a graphic that resembles a triangle.
After capturing image data, a pattern recognizer searches the image data for the expected triangle. If found, the triangle signals an expected presence of digital watermarking.
[0096] Sometimes we prefer to add more subtle features to signal the presence of a digital watermark. In one implementation we shift the spatial starting position of text relative to other document features. For example, a document bearer's printed name or employee number can be spatially shifted with respect to the bearer's photograph. The spatial distance between a starting point of text and a photograph (e.g., a lower right hand corner of the photograph) can be machine-measured and used to trigger watermark detection. Of course, instead of shifting text, we can subtly reposition graphics or other artwork as well. In other cases we trigger off of an identification document number.
For example, the number may include an extra character (e.g., the seventh or eighth character in) or a leading one or zero can be used to indicate digital watermarking. In other cases we use a plurality of characters, e.g., the last four characters or every other character to indicate the presence of digital watermarking.
[0097] While we have discussed handling legacy documents with respect to digital watermarking, this embodiment of the present invention is not so limited. Of course, our techniques apply to triggering detection of other types of machine-readable features or identifying other types of legacy documents as well.
[0098] A few illustrative combinations are shown below. Of course, these combinations are not meant to limit the scope of this aspect of the invention.
Rather, the combinations are provided by way of example only.
[0099] Cl. An identification document authenticator operable to authenticate an identification document through a digital watermarking authentication process or through a non-digital watermarking authentication process, a process being selected depending on a detection trigger, said authenticator comprising:
electronic processing circuitry;
a system communications bus;
memory in communication with the electronic processing circuitry via the system communications bus, said memory comprising instructions for processing by the electronic processing circuitry, said instructions comprising instructions to:
analyze data corresponding to the detection trigger;
determine whether the data indicates an expected presence of digital watermarking in the identification document, and if so indicated, authenticate the identification document through the digital watermarking authentication process; and determine whether the data indicates an expected absence of digital watermarking, and if so indicated, authenticate the identification document according to the non-digital watermarking authentication process.
[0100] C2. The authenticator of Cl, wherein the identification document carries the detection trigger.
[0101] C3. The authenticator of any one of Cl or C2, wherein the detection trigger comprises a document issue date [0102] C4. The authenticator of any one of Cl or C2, wherein the detection trigger comprises a document expiration date.
[0103] C5. The authenticator of C2, wherein the detection trigger is carried by a machine-readable feature.
[0104] C6. The authenticator of C5, wherein the machine-readable feature comprises at least one of a barcode, magnetic stripe, optical memory and electronic circuitry.
[0105] C7. The authenticator of Cl, wherein the non-digital watermarking authentication process comprises a cross-correlation of first and second instances of bearer or document specific information carried by the document.
[0106] C8. The authenticator of C7, wherein the first and second instances each comprise data corresponding to a birth date.
[0107] C9. The authenticator of C7, wherein the first and second instances each comprise data corresponding to a name.
[0108] C10. The authenticator of C7, wherein the first and second instances each comprise data corresponding to a document number.
[0109] C 1 1 . The authenticator of C7, wherein the first and second instances each comprise data corresponding to an address.
[0110] C12. The authenticator of claim CI, wherein the digital watermarking comprises a first digital watermark including a first payload and a second digital watermark including a second payload.
[0111] C13. The authenticator of C12, wherein the digital watermarking authentication process comprises at least a cross-correlation of some of the first payload with at least some of the second payload.
[0112] C14. The authenticator of Cl, wherein the memory comprises electronic memory circuits.
[0113] C15. The authenticator of C14, wherein the electronic processing circuitry comprises a processor.
[0114] C16. The authenticator of Cl, wherein the memory comprises at least one of removable memory and fixed memory.
[0115] C17. The authenticator of Cl further comprising an input device.
[0116] C18. The authenticator of C17, wherein the detection trigger is manually entered into the authenticator via the input device.
[0117] C19. The authenticator of C17, wherein the detection trigger is machine-read into the authenticator via the input device.
[0118] C20. The authenticator of C17, wherein the input device comprises at least one of a key pad, mouse, magnetic stripe reader, optical memory reader, optical sensor, barcode reader, touch screen and smart card reader.
[0119] Dl. A method to determine whether to authenticate an identification document through a digital watermark authentication process, wherein the identification document comprises a detection trigger, said method comprising the steps of:
receiving digital data corresponding to the detection trigger;
if the detection trigger indicates an expected presence of digital watermarking, analyzing optical scan data to decode the digital watermarking; and if the detection trigger indicates an expected absence of digital watermarking, providing an indication that the identification document is a legacy document.
[0120] D2. The method of claim D1, wherein the trigger comprises a document issue date.
[0121] D3. The method of claim D1, wherein the trigger comprises a document expiration date.
[0122] D4. The method of any one of DI-D3, wherein the document comprises a magnetic stripe, and wherein the trigger is stored by the magnetic stripe.
[0123] D5. The method of any one of Dl-D3, wherein the document comprises electronic circuitry, and wherein the trigger is stored in the electronic circuitry.
[0124] D6. The method of any one of D1-D3, wherein the document comprises a machine-readable feature, and wherein the trigger is conveyed through the machine-readable feature.
[0124] D7. The method of D6, wherein the machine-readable feature comprises a barcode.
[0125] D8. The method of DI, wherein the trigger comprises a client code.
[0126] D9. The method of D8, wherein the trigger further comprises at least one of a document issue date and a document expiration date.
[0127] DIO. The method of D1, wherein the providing an indication comprises disabling or foregoing a watermark detection process.
[0128] D11. The method of D1, wherein the providing an indication comprises outputting a signal to indicate that the document is a legacy document.
[0129] D12. The method of D11, wherein the signal is displayed through a graphical user interface.
[0130] D13. The method of D11, wherein the signal activates a warning.
[0131] D14. The method of claim D11, wherein the signal controls or initiates an automated, but non-watermarking based, authentication process.
Sixth Embodiment - Plural Watermarks [0132] While some of the above embodiments have envisioned enhanced identification document security through embedding of two digital watermarks, the present invention is not so limited. Indeed, the inventive techniques discussed herein will apply to identification documents including three or more watermarks as well. For example, watermark payload correspondence as discussed under the Second Embodiment can involve three or more watermarks.
Advantages of Watermarking Identification Documents [0133] Some advantages provided to identification documents by digital watermarking may include the following bullet list. Of course, this list is not meant to limit the present invention, and many of the disclosed embodiments need not include such advantages. By way of illustration only, some watermarking advantages include:
= A covert security feature, since a watermark is not generally visually discernible.
= No significant impact on an identification document's limited "real estate."
= When deployed across multiple areas, a simple, common authentication mechanism (watermark) is provided when optically reading the identification document. This addresses the complexity issues related to detecting false documents. In a driver's license context, both documents with and from out of state can be authenticated.
= Linking to a database (e.g., a DMV, insurance database, etc.) can be enabled, based on policies set and enforced by each document issuing government or organization. Watermark reading software can be implemented to provide access to software based on government or organization policy and reading audience, or alternatively, in-state/out-of-state status.
= By providing a linking mechanism versus encoding information on the document itself, inappropriate access to cardholder personal data is prevented.
Also, if a government's policy regarding data access for a certain audience changes, this can be implemented in the reader software, enabling dynamic policy changes, without having to reissue identification documents.
[01341 Some advantages of watermarking to government agencies (e.g., DMV, law enforcement officials, and other authorized audiences) and financial institutions are discussed in the following bulleted list. Of course, this list is not meant to limit the =
present invention, and many of the disclosed embodiments need not include such advantages. By way of illustration only, some watermarking advantages for government agencies include:
= DMV forensics agents can detect cards that have been copied and altered, as well as track back to the originating card(s).
= Point of sale agents for age-controlled products can locally authenticate a card with respect to card authenticity and age status, without gaining machine-readable access to the individual's demographic data and compromising = cardholder's privacy. Watermarking may also provide an ability to read cross-jurisdictional identification documents thus providing better data sharing.
= Any inspector equipped with a digital watermark reader can detect "simulated" cards.
= The common "photo swap" attack can be automatically detected (e.g., see the first and second embodiments discussed above).
= Text alterations and/or substitutions on otherwise legitimate documents can be automatically detected.
= Insurance verification can be provided to Law Enforcement by linking to an insurance company database, using the watermark identifier information.
= Law enforcement or other authorized users, with the appropriate authorizations and privileges, can selectively and securely link to "back-end"
databases for access to photos, biometrics, demographics, and outstanding warrants via a simple imaging or scanning of the identification document.
= Crosschecks on a cardholder's name can be done so that financial institutions can further authenticate identity.
Detecting Media Areas Likely of Hosting Watermarks Orientation components [0135] The subject matter in this section relates to assignee's U.S. Patent Application Nos. 10/032,282, filed December 20, 2001 (published as US 2002-0114491 Al) and 09/945,244, filed August 31, 2001 (published as 20020057823 Al).
[0136] Steganographic calibration signals (sometimes termed "marker signals,"
reference signals," "grid signals," or "orientation components," etc.) are sometimes included with digital watermarking signals so that subsequent distortion of the object thereby marked (e.g., a digital image file, audio clip, document, etc.) can later be discerned and compensated for. Such arrangements are detailed in the related applications.
[0137] One type of watermark orientation component is an image signal that comprises a set of impulse functions in a transform domain, like a Fourier magnitude [0138] An exemplary orientation signal may include one or more of the following characteristics:
20 1. It comprises a collection of impulse or delta functions in the Fourier magnitude domain;
2. The impulse functions have pseudo random phase (i.e. the phase is random, yet the phase is known so that translation (e.g., its X and Y
origin) of the watermark can be computed by correlating the know phase 25 information of the calibration signal with the watermarked signal);
and 3. The impulse functions are typically distributed in the mid-frequency range so as to survive distortion yet not be perceptible [0139] In other embodiments, different orientation components can be used in blocks, pre-filtered, and then converted into the Fourier domain. The Fourier representation for all the component blocks can be accumulated, filtered, and remapped into the log-polar domain.
Multiple Watermarks on Printed Documents [0140] As discussed above, some watermarking implementations include a printed document having a plurality of digital watermarks embedded thereon. We have developed methods and systems to quickly identify areas where the digital watermarks may be embedded, and then focus decoding efforts on the identified areas, particularly when each of the embedded digital watermarks includes an orientation component (or calibration signal). Message decoding efforts can focus on areas identified as likely candidates of including a digital watermark.
[0141] We choose to illustrate our inventive methods and systems with respect to printed documents, such as financial documents, e.g., checks, banknotes, financial instruments, legal instruments and identification documents. Some financial and identification documents may include so-called radio frequency identification circuitry (RFID), smart card chips or circuitry, optical memory, magnetic memory, etc.
Of course, our techniques apply to other objects and media (e.g., digital images and video) as well.
[0142] FIG. 6 illustrates a printed ID document 100. ID document 100 preferably includes a photographic representation 102 of a bearer of the ID document 100.
The photographic representation 102 may include, e.g., a background portion 102a and a likeness of the bearer portion 102b. The ID document 100 will typically include printed indicia like text (e.g., name, address, jurisdiction, document number, birth date, etc.), machine-readable code (e.g., 1 or 2-D barcodes ¨ not shown in FIG. 6), graphics, background patterns, seals, emblems, artwork, etc. Sometimes the printed indicia is printed with visible or invisible (e.g., UV or IR) inks. Of course, the ID
document 100 may include a wide variety of other features like optical or magnetic memory, microprinting, holograms, Kinograms0, electronic circuitry (e.g., a so-called smart card), ghost or faintly reproduced images, etc., etc.
[0143] ID document 100 includes a plurality of watermarks embedded thereon. To simplify the discussion ID document 100 includes two (2) digital watermarks.
It should be appreciated, however, that our techniques apply to documents including one and three (3) or more digital watermarks as well.
[0144] A first digital watermark is embedded in the photographic representation 102 to (FIG. 6). The first digital watermark can be embedded in the background portion 102a, embedded in the likeness portion 102b, or embedded in both portions 102a and 102b.
In our preferred implementation we redundantly embed the first digital watermark throughout the photographic representation 102 or a portion of the photographic representation 102. The first digital watermark typically includes an orientation component (hereafter called a "first orientation component") and a first message component. The first orientation component is embedded at (or is embedded so as to represent) a first orientation. For example, the first orientation corresponds to a first scale, rotation and/or translation. Translation can be a measure or reflection of a distance or relationship to a predetermined origin or spatial location (e.g., the upper left comer of the identification document). An orientation component may also reflect a particular message starting position or location. If the first digital watermark is redundantly embedded throughout the photographic representation 102, the redundant instances of the first orientation component preferably include the same (or at least closely similar) first orientation.
[0145] A second digital watermark is embedded in area 104. Area 104 includes a graphic, seal, background area, artwork, ghost image, photographic image, hologram, Kineogram0 or line art, etc. (hereafter generally referred to as "artwork"), in which the second digital watermark is embedded. The artwork may overlap with text or other document features. While area 104 is illustrated as a bounded and limited area, area 104 can alternatively occupy much larger or smaller document 100 areas. In our preferred implementations we redundantly embed the second digital watermark throughout area 104. The second digital watermark typically includes an orientation component (hereafter called a "second orientation component") and a message component. The second orientation component differs from the first orientation component. The difference may be subtle such as a difference in embedding scale, rotation or translation, or may explicitly differ in terms of a different calibration technique or embedding protocol.
[0146] The second orientation component is preferably embedded at (or is embedded so as to represent) a second orientation, e.g., at a second scale, rotation and/or translation. If the second digital watermark is redundantly embedded throughout area 104, the redundant instances of the second orientation component preferably include the same second orientation.
[0147] Thus, the first and second digital watermarks each preferably include an orientation component that differs from one another (e.g., the orientation components differ in terms of scale, rotation and/or translation, etc.) or differs relative to a know or predetermined orientation component.
[0148] A digital watermark detection process is discussed with respect to FIGS. 7 and 8A-8C. ID document 100 is presented to a sensor 110 (FIG. 7). Sensor 110 can take a variety of forms. For example, sensor 110 may include a flatbed scanner, an optical senor or array, a CCD optical sensor, a handheld device, web camera, a digital camera (e.g., as is commonly associated with today's cell phones or handhelds), etc.
Sensor 110 captures scan data (or "image data") that represents ID document 100 or a portion of the ID document 100. The captured scan data is communicated to a watermark detector 120 (e.g., electronic processing circuitry controlled by software).
[0149] Watermark detector 120 is configured to analyze windows or image areas (e.g., blocks, image portions or segments), in search of watermark orientation components or in search of characteristics that are associated with watermark orientation components.
For example, the watermark detector 120 analyzes scan data associated with a first window 60a (FIG. 8A). The window sizes can vary according to detector specifications. To illustrate, we select a window, e.g., having 32X32 pixels, pixels or 128X128 pixels.
[0150] We prefer a sliding window approach for our detector. That is, after the watermark detector 120 analyzes image area 60a, it analyzes an adjacent, perhaps even overlapping, window area 60b, and so on until it analyzes a last window 60n for a first window row (FIG. 8B). The window can be repositioned to analyze additional windows (e.g., 62a-62n) until it analyzes a last row of windows (64a-64n) as illustrated in FIG. 8C. Of course, the detector 120 can alternatively select windows at random (or pseudo-random), or select windows corresponding to a central area of the ID
document 100. Also, a first window 60a need not be selected from the upper left hand corner of the ID document 100, but can be selected from other starting image portions as well. In still further alternative implementations, once a watermark has been found in a particular window, the detector analyzes adjacent windows, and then branches out from the adjacent windows.
[0151] While not necessary to do so, the watermark detector 120 preferably analyzes all of the captured image data. (Alternative implementations only look at a subset of the captured image data.). To illustrate, e.g., if the scan data corresponds with a 1024X1280 pixel area, and if 64X64 pixel windows overlap by 50 percent, about windows are analyzed. Of course the number of windows will decrease as the window size increases and/or as the overlap area decreases.
[0152] Each window or image portion is preferably classified in terms of its orientation characteristics. For example, the detector 120 compares an orientation of each image window or block (some of which may include no watermark signal at all) to that of a predetermined orientation (e.g., an orientation corresponding to an expected watermark orientation component). A metric or measure can be used to classify each image portion in terms of its determined orientation or in terms of its determined orientation relative to the predetermined orientation. An orientation measure may include factors such as rotation, scale, translation, etc.
[0153] The detector 120 (or a computer cooperating with the detector 120) remembers or groups together those windows or image portions which have the same metric or orientation measures. The term "same metric" is broadly used and may include an exact sameness or the metric may include a tolerance. For example, orientations falling within plus-or-minus 1-10 degrees (for rotation) may be grouped together, or those falling within plus-or-minus 2-10% scale or translation might similarly be grouped.
After grouping the blocks, the detector (or a cooperating computer) sifts through the groupings to identify predominate groups. The two most predominate groups will likely correspond to one of a first watermark orientation component and a second watermark orientation component.
[0154] FIG. 9A shows a histogram illustrating a relationship between classified blocks (where the z axis represents a number of image windows having a particular orientation) in terms of scale (x axis ¨ in terms of a scale relative to a predetermined scale) and rotation (y axis ¨ in terms of rotation angle in degrees from a predetermined angle). As shown, the histogram includes two strong peaks, each at different orientations. To be more precise, the two peaks share the same rotation, but differ in terms of scale. The peaks correspond to the first watermark orientation component at a first rotation and first scale, and a second watermark orientation component at the first rotation, but second and different scale. The histogram provides a tidy graphical analysis to determine blocks with the same (or closely similar) orientation values. The small peaks in FIG. 9A correspond to image windows that include various orientation values (e.g., images areas that do not have a digital watermark orientation component embedded therein).
[0155] There may be some cases in which the two or more watermark components have the same rotation and scale. For example, only a single predominate peak is seen in FIG. 9B since the first and second orientation components include the same rotation and scale. In these cases other orientation parameters, like translation, can be analyzed to distinguish between different orientation components. These other implementations may include an orientation metric, which includes a translation factor. Image portions can be plotted or analyzed in terms of their orientation metrics as shown in FIGS. 10A-10D. More precisely, FIG. 10A shows an identification document including two watermarks redundantly embedded therein (shown by the two "grids" ¨ one solid and one dashed ¨ where each grid tile represents a redundant instance of a watermark or watermark component). Each of the watermarks includes a different translation with respect to an upper left corner (or other predetermined origin) of the identification document. As a watermark detector analyses the document as discussed with reference to FIGS 8A-8C it may determine a particular translation value for each window.
Since the redundant instances will have the same translation values (perhaps after adjustment for relative tile positioning within the first or second grids), watermarked areas can be determined. FIG. 10B and 10C illustrate document areas having the same relative translation in terms of x-translation and y-translation. Windows can be grouped together based on similar translation values as shown by the histogram in FIG.
10D.
The predominate two groups identify likely locations of the first and second watermarks, since they have common translation values.
[0156] Once predominate orientations are identified, document areas 80 and 82 shown in FIG. 11A (or areas corresponding to scan data including the predominate orientations) can be identified. The identification may involve, e.g., determining which image portions have an orientation corresponding to predominate orientations or which image portions fall within the predominate groups. Areas 80 and 82, or image windows corresponding to areas 80 and 82, can be further analyzed to detect a watermark message. (Areas 80 and 82 in FIG. 11A are intentionally drawn with jagged or varying boundaries. The variation may be caused in some implementations, e.g., where the sample windows do not precisely correspond with embedding areas boundaries.).
[0157] Sometimes we may see an isolated window 84 identified as shown in FIG.
11B. The isolated window may be identified as likely including a watermark because is has an image or noise orientation that is similar to one of the selected watermark orientation components. We optionally test for isolation to jettison such an isolated block 84, since the isolated block is not likely to include watermark information, but rather reflects noise having a similar orientation. One method tests each selected window to ensure that it has at least one or more neighboring selected windows. If it does not, the isolated window 84 is disregarded.
[0158] As an alternative grouping technique, a watermark "strength" is determined for each window. Each image window then has an orientation metric and a strength metric associated therewith. The strength metric is a representation of a watermark characteristic, or a relative correlation between an expected watermark signal and the detected watermark signal. Windows are grouped according to their orientation metrics, but are represented according to a collective strength of all of the windows in a group (e.g., we add together the strength metric for each window within a group).
Groups are then represented in terms of collective group strength and not in terms of the number of windows within a group. A strength metric provides an even more prominent indication of watermarked windows, e.g., as shown by the histogram peaks in FIG. 12.
[0159] As a further alternative approach, we filter image data or histogram data to help jettison unwanted noise. This approach even further increases the prominence of window groups or peaks over background noise.
[0160] Our approach saves processing time since only those areas including watermark orientation components are further analyzed to detect a watermark or payload message.
Copy Detection [0161] In addition to reducing processing time and ensuring better watermark detection, our techniques may be used as a copy detection tool.
[0162] Consider a financial document like a check. A common counterfeiting technique "cuts and pastes" (perhaps digitally) features from one check to another check. For example, a counterfeiter may cut and paste a bank seal or logo from one check onto another.
[0163] To help detect a copy we provide a document (e.g., a check from Bill's Bank) with two embedded digital watermarks. Each of the first and second digital watermarks includes a first and second orientation component, respectively. The first and second orientation components have a known relationship to one another or a known relationship to a predetermined orientation component. To simplify the discussion, lets say that the first orientation component has a scale that is 82% of an expected scale, and the second orientation component has a scale that is 78% of an expected scale.
[0164] A watermark detector can expects to find the relative scales for the first and second orientation components in order to authenticate Bill's check. (Of course, the detector can account for any optical sensor discrepancies, such as unwanted scaling relative to the printed check.).
[0165] The document is considered suspect if the orientation components' scales are not as expected.
[0166] In some implementations, each bank (or client type) includes a unique orientation component relationship between its watermarks. For example, if the customer or account is associated with a commercial endeavor, then the orientation components are related according to a first predetermined relationship. But if the customer or account is associated with a government endeavor then the orientation components are related according to a second predetermined relationship, and so on.
[0167] A third watermark or watermark component can be used to convey the predetermined relationship or a watermark detector can be configured to expect a certain relationship.
[0168] Even if the counterfeiter is careful when replicating a predetermined scale and rotation, it remains difficult to properly align the multiple watermarks to achieve a predetermined translation.
[0169] Our copy detection also works with ID documents where a counterfeiting technique involves photo or feature swapping. A first watermark is embedded in a photograph, and a second watermark is embedded in a background or artwork.
Each of the first and second watermarks includes an orientation component. The orientation components have a predetermined relationship to one another or to a control orientation component. Scan data is collected and orientation parameters are determined.
The determined orientation parameters are analyzed to detect a counterfeit document or photo swap. (Different issuers (e.g., state or country) can include a unique orientation component relationship. If the relationship is not what is expected for the issuer, then the document is considered suspect.).
[0170] In alternative implementations a financial document or ID document includes a visible fiducial or overt structure printed or engraved thereon. Orientation parameters are determined relative to the visible fiducial or structure. For example, a scale or rotation of a watermark orientation component is determined relative to the fiducial, and image portions are classified by their relative relationship (or any deviation from an expected relationship) to the fiducial.
[0171] A few illustrative combinations are shown below. Of course, these combinations are not meant to limit the scope of this aspect of the invention.
Rather, the combinations are provided by way of example only.
[0172] El. A method to detect a copy of a printed document, the printed document comprising a first area and a second area including, respectively, a first digital watermark and a second digital watermark, wherein the first digital watermark includes a first orientation component and the second digital watermark includes a second orientation component, said method comprises:
receiving scan data associated with the printed document;
segmenting the scan data into a plurality of portions;
determining an orientation parameter for at least some of the portions;
identifying from the determined orientation parameters, at least two most prominent orientation parameters;
comparing at least one of: i) a relationship between the two most prominent orientation parameters; ii) the two most prominent orientation parameters to predetermined orientation parameters; and iii) a relationship between the two most prominent orientation parameters and an expected relationship between the two most prominent orientation parameters; and based on the comparing step, determining whether the printed document is an original or is a copy of the printed document.
[0173] E2. The method of El wherein the printed document comprises a financial document.
[0174] E3. The method of El wherein the printed document comprises an identification document, and wherein the first area corresponds with a photographic representation of a bearer of the identification document.
[0175] E4. The method of El, wherein the orientation parameter comprises rotation and scale.
[0176] Fl. A method of determining areas of media that have a likelihood of including digital watermark information, said method comprising:
receiving digital data corresponding to the media;
analyzing a plurality of portions of the digital data to determine an orientation measure for each of the portions, wherein the orientation measure provides an orientation measure relative to a predetermined orientation measure; and to identifying a predetermined number of orientation measures that have at least one of: i) a highest number of portions associated therewith; and ii) a strongest collective watermark strength associated therewith.
[0177] F2. The method of Fl, wherein the media comprises a digital image.
[0178] F3. The method of Fl, wherein the media comprises video.
[0179] F4. The method of Fl, wherein the media comprises a printed document.
[0180] F5. The method of F4, wherein the printed document comprises at least one of an identification document and a financial document.
[0181] F6. The method of Fl, further comprising analyzing portions that correspond to the identified orientation measures to recover the digital watermark information [0182] F7. The method of F6, wherein the identified orientation measures respectively correspond to different digital watermark orientation components.
[0183] F8. The method of claim F6, wherein prior to said analyzing step, said method further comprises manipulating the portions that correspond to the identified orientation measures to compensate for image distortion identified by the orientation measures.
[0184] Gl. A method of identifying areas of image data that are likely to include a digital watermark, the image data corresponding to a document comprising a first area and a second area including, respectively, a first digital watermark and a second digital watermark, wherein the first digital watermark includes a first orientation component and the second digital watermark includes a second orientation component, and wherein the document further comprises a visible fiducial, said method comprises:
segmenting the image data into a plurality of portions;
determining an orientation parameter for at least some of the portions relative to the visible fiducial;
identifying from the determined orientation parameters, at least two prominent orientation parameters, wherein portions of the image data that corresponds to the prominent orientation parameters are identified as areas of image data that are likely to include a digital watermark.
Introduction to Appendix A
[0185] Reference is now made to the accompanying Appendix A. Appendix A
details various additional identification document security features that can be used in combination with digital watermarking, including multiple digital watermarks.
Indeed, use of these additional security features provides a layer-security approach ¨
making it even more difficult for a potential forger to successfully replicate an identification document.
[0186] In addition to providing a layered security feature, we note that many of these security features can cooperate with a digital watermark. For example, a radio frequency-based security feature may include a code for comparison with (or to unlock or decrypt) a code or message carried by a digital watermark, or vice versa.
[0187] As a further example, a fragile or semi-fragile digital watermark can be embedded or laser engraved in a security laminate. If the laminate is tampered with (e.g., manipulated, removed and/or replaced) the fragile watermark will be destroyed or predictably degraded.
In addition, a watermark may be embedded in many of the security features discussed in Appendix A, like fine line printing (background), holograms, optical watermarks, seals and spot colors, to name but a few.
[0188] Still further, one or more digital watermark may be embedded with ultra-violet inks, optically variable inks, specialized inks, infrared inks, etc. In some cases, we anticipate embedding a first digital watermark with conventional ink, while we embed a second digital watermark with one of the specialized (e.g., UV, IR, optically variable, etc.) inks described in Appendix A. The two digital watermarks may cooperate with each other, or may correspond with text (or microprinting) that is providing on an identification document substrate.
[0189] A watermark can also cooperate with biometric information carried by the identification document. In a first implementation, the digital watermark includes a payload having a key to decrypt or decode biometric information stored in a 2-D
barcode or magnetic or RF storage carried on the card. In a second implementation, the digital watermark includes information that is redundant with biometric information carried by another security feature. Comparison of the digital watermark information and the biometric information reveals whether the identification document is authentic.
In a third implementation, the digital watermark includes at least a portion of a biometric template. Once decoded, the biometric template is used to help authenticate the identification document or to convey information.
[0190] Of course additional combinations of these security features are anticipated. In some cases, the combination will include digital watermarking, and in other combinations they will not include digital watermarking.
[0191] For example, possible combinations might be:
[0192] Hl. A security document comprising:
a substrate;
a first graphic carried by the substrate, the first graphic conveying a photographic image to human viewers thereof, the first graphic being steganographically encoded to convey first plural bits of digital data recoverable by computer analysis of said first graphic; and a second graphic carried by the substrate, the second graphic conveying a visual image to human viewers thereof, wherein the second graphic is steganographically encoded to convey second plural bits of digital data recoverable by computer analysis of said second graphic;
and a security feature carried by the substrate.
[0193] H2. The security document of H1, wherein the steganographically encoded first plural bits of digital data and the steganographically encoded second plural bits of digital data cooperate to verify authenticity of the security document.
[0194] H3. The security document of HI, wherein the security feature comprises at least one of a deliberate error, a known flaw, fine line background, ghost image, laser encoded optical image, laser engraving, laser perforation, microprinting, a Moire Pattern, overlapping data, rainbow printing, and security code printing.
[0195] H4. The method of H1, wherein the security feature comprises ultra-violet ink.
[0196] H5. The method of H4, wherein the steganographically encoded first plural bits of digital data and the steganographically encoded second plural bits of digital data cooperate to verify authenticity of the security document, and wherein at least one of the first plural bits of digital data and the second plural bits of digital data cooperate with the security feature to verify the authenticity of the security document.
Conclusion [0197] The foregoing are just exemplary implementations of the present invention. It will be recognized that there are a great number of variations on these basic themes.
The foregoing illustrates but a few applications of the detailed technology.
There are many others.
[0198] The particular combinations of elements and features in the above-detailed embodiments are exemplary only; the interchanging and substitution of these teachings with other teachings in this application and the referenced patent documents are also contemplated.
[0199] The section headings in this document are provided for the reader's convenience, and are not intended to impose limitations on the present invention.
Features disclosed under one section (or embodiment) heading can be readily combined with features disclosed under another section (or embodiment) heading.
[0200] While some of the preferred implementations have been illustrated with respect to identification documents the present invention is not so limited.
Indeed, the inventive methods can be applied to other types of objects as well, including, but not limited to: checks, traveler checks, banknotes, legal documents, printed documents, in-mold designs, printed plastics, product packaging, labels, photographs, etc.
[0201] Also, while some of the implementations discuss embedding first and second digital watermarks, an alternative implementation embeds a single watermark having a first payload component and a second payload component. The first payload component can be embedded, e.g., in a photograph and the second payload component can be embedded, e.g., in a graphic or artwork. The first payload component and the second payload component can be cross-correlated or intertwined to evidence an authentic identification document, as discussed in the above implementations and embodiments.
[0202] Although not belabored herein, artisans will understand that the systems and methods described above can be implemented using a variety of hardware and software systems. Alternatively, dedicated hardware, firmware, or programmable logic circuits, can be employed for such operations. Also, some implementations described in the detailed description suggest that some of the methods or functionality can be carried out using computers or electronic processing circuitry executing software. While this may be a preferred implementation, the present invention is not so limited. Indeed the methods and functionality may be achieved by other means, such as dedicated hardware, firmware, programmable logic circuits, etc.
[0203] In view of the wide variety of embodiments to which the principles and features discussed above can be applied, it should be apparent that the detailed embodiments are illustrative only and should not be taken as limiting the scope of the invention. Rather, we claim as our invention all such modifications as may come within the scope and spirit of the following claims and equivalents thereof.
Appendix A
The following security measures (see security features table below) can be employed in an identification document to counteract malicious and fraudulent attacks and threats. Some of these attacks and threats include: Counterfeiting, Simulation, Alteration, Photo Substitution and Signature Substitution, Imposters, Internal Fraud and Theft, to name a few.
The above listed types of attacks and threats can be described in terms of covert/overt and the degree of inspection required. Based on a layered security architecture approach, each identification document (sometimes hereafter referred to as a DL/ID
card) preferably includes security features that could be used by each of the below three levels of inspection:
First Level - the untrained examiner (e.g., operator through visual observation);
Second Level - the trained examiner (e.g., DMV examiner or law enforcement officer);
Third Level - the forensics examiner (e.g., law enforcement investigator).
To increase the overall security level of the DL /ID card and to protect the cardholder there can be one or more features at each of the three levels of inspection to maximize the protection against the possible threats.
The following "Security Features" chart provides some security features that can be used to help secure identification documents. Of course the descriptions given for the features are not meant to be limiting, but are provided by way of example. The security features can be used to counter different threats as well. And, as we discuss below, we preferably employ a layered approach, meaning that two or more the below security features are used per identification document.
Security Features Table Security Feature Type Threat Inspection Description Countered Level Biometric Covert/ Counterfeit/ Second/ A biometric template of the applicant that is Forensic Simulation, Third stored on the machine-readable feature of the card Photo/ and/or in the central system for future Signature verification and investigation purposes.
Substitution, Alteration, and Imposters Biometric Logon Covert/ Internal Fraud Second/ A biometric template that is time stamped and Forensic Third stored in the audit file of the system.
Core Inclusion Overt/ Counterfeit/ First It is possible to manufacture a plastic document Forensic Simulation with several different layers of core stock. A
colored core material can be added to the card construction to create a colored edge along the card. This technique is currently used in the new INS Work Permit Card as a means of identifying a genuine document.
Deliberate Errors Covert Counterfeit/ Second/ A feature or attribute known only to the or Known Flaws Simulation Third manufacturer or inspection officials.
Directional Overt/ Counterfeit/ Second Directional metamerism refers to the use of colors Metamerism Forensic Simulation that differ in spectral composition but match one another under certain lighting conditions. Using this technique, designs can be created that will show colors that appear to be identical under incandescent light but, under colored light, appear as different colors and patterns.
Digital Covert/ Counterfeit/ Second/ A secure and machine-readable feature that is Watermark Forensic Simulation, Third embedded in the DL/ID and is generally Photo/ imperceptible to the human eye while being Signature readable by a watermark reader.
In some cases, Substitution, the watermark is secure.
Digital watermarking and Alteration fits within the DL/ID design and does not take up any significant real estate on the card, e.g., since it is embedded in card features or background.
Digital watermarking may enable standardized machine based cross-jurisdictional authentication and forensic analysis of the DL/ID without a need for standardized card design.
Embossed Overt Alteration First Embossing is the impressing of raised characters Characters to render a tactile pattern.
The raised characters will also render the card uneven/not flat, thereby making the card more difficult to reprint. It is possible to develop unique embossing characters or logos that would not be included in Security Feature Type Threat Inspection Description Countered Level _ commercially available embossers.
-Fine Line Covert Counterfeit/ First/ Commonly called "guilloche patterns," this Background Simulation Second detailing prevents accurate reproduction by copiers or standard document scanners, especially when used in conjunction with Rainbow Printing.
A fine line background is constructed by using two or more intricately overlapping bands that repeat a lacy, web-like curve pattern on fine unbroken lines.
Ghost Image or Overt Alteration First Digital printing technology has made possible the Ghost Printing printing of a "ghost" image, a half tone reproduction of the original image, which is typically printed in the same area as the personal data. The second image appears as a light background to text data, significantly increasing the difficulty of altering the photo image or the data.
Holograms Overt/ Counterfeit/ First A hologram is a microscopically fine diffraction Forensic Simulation structure by which two or three-dimensional images are generated. The metallized reflective hologram has been a security feature for Visa and MasterCard cards for more than 10 years. The intrinsic security of the hologram results from a moveable image when viewed from different _ angles. It is not receptive to photography, photocopying, or scanning, and it requires highly specialized equipment to replicate designs.
Ink Taggants Covert/ Counterfeit/ Second/ Special inks have been formulated with specific Forensic Simulation Third elements called taggants. These elements react to electromagnetic energy sourced from a remote reader. By using these inks and measuring their reflection, it is possible to identify designated card groupings or types. These taggant-carrying products are known as smart (or intelligent) inks.
Kinegrams Overt/ Counterfeit/ First Kinegrams, like holograms, can be produced on a Forensic Simulation reflective or transparent material. However, unlike holograms, Kinegrams have only two-dimensional effects, and effects are observable under a wider variety of lighting conditions. Also, Kinegrams can incorporate asymmetric optical effects that are different optical variable effects which are viewable as the Kinegram is completely rotated (360 degrees).
Laser-Encoded Overt/ Alteration First/Third The image and text files used to personalize and Optical Image Forensic Photo issue a document is laser-encoded on to optical Substitution WORM media as a visible diffraction pattern and image that is eye-readable under a variety of Counterfeit/ lighting conditions. The personalized laser-Simulation encoded optical image is extremely difficult to Security Feature Type Threat Inspection Description Countered Level simulate as it has a two-dimensional appearance and the encoding registration on to the optical WORM media is at a sub-micron level of accuracy. The laser-encoded optical image cannot be removed from the reflective optical WORM
media nor can it be duplicated or simulated by photocopying, photography or scanning. The laser-encoded optical image can be updated by incorporating new diffraction pattern images or alphanumeric text as the document is updated or processed. Furthermore, covert physical protection can be added by interleaving a copy of the digital file within the laser-encoded optical image. This personalized security feature is currently used in the Permanent Resident Card ("Green Card") issued by the U.S. Immigration and Naturalization Service and the Border Crossing Card issued by the U.S. Department of State.
Laser Engraving Overt/ Alteration First/ Laser engraving has been used in Europe for more Forensic Second than 10 years on high-security plastic cards for printing highly tamper-resistant variable data on a card. Using an intense laser beam, data is burned (or "engraved") into the inner core of the card. The information cannot be mechanically or chemically removed without damaging the surface of the card, thereby providing an extremely effective tamper-resistant barrier. Laser engraving can be performed with alphanumeric characters, digitized images (such as photos or signatures), or bar codes and OCR characters.
Laser Perforation Overt/ Alteration First/ This is the perforation of a document using laser Forensic Second technology. Unlike mechanical punching techniques, the holes made by the laser beam are free from burrs and can easily be confirmed by feeling. The holes created are also conical shape, with the entrance being larger than the exit.
Machine- Covert Counterfeit/ Second/ The card design can incorporate inclusion of Readable Simulation Third many machine-readable technologies such as Technologies magnetic stripe, integrated circuit, 1D or 2D bar-codes, OCR, optical WORM media, machine-readable holograms, etc. Verification of the authenticity of the document, the data, and/or the person presenting the document can be accomplished with a card reader, depending on the technology employed. Common techniques to ensure data integrity include:
Check digits and data encryption (presumably with public key encryption); and, Security Feature Type Threat Inspection Description Countered Level For IC cards, tamper detection and chip disabling;
and digital signatures for all data written to the chip.
Metallic and Overt/ Counterfeit/ First Special iridescent inks fluctuate in brilliance Pearlescent Inks Forensic Simulation, depending upon the angle of illumination and Alteration and viewing. The typical appearance of metallic or Photo/ pearl luster inks cannot be mimicked by color Signature copiers or reproduced by scanning and reprinting.
Substitution Micro Optical Overt/ Counterfeit/ First/ Text, line art, gray scale images and multi-Imaging Forensic Simulation, Second reflectivity images can be engineered into optical Alteration and WORM media at a resolution over 12,000dpi. This Photo/ extremely high resolution is over 4 times higher Signature than current security printing techniques and Substitution therefore extremely difficult to simulate. The micro optical images cannot be removed from the reflective optical WORM media nor can it be duplicated or simulated by photocopying, photography or scanning. Micro optical imaging is mainly made up of visible images but can also incorporate digital data that can be used for covert machine-readable security. Micro optical imaging is currently used in the U.S. Permanent Resident Card, Border Crossing Card and several other commercial applications.
Microprinting Overt/ Counterfeit/ Second Miniature lettering, which is discernible under Forensic Simulation magnifying readers, can be incorporated into the fine line background or can be placed to appear as bold lines. Visa, MasterCard, and American Express include microprint as a standard security feature. Microprint was also added to U. S.
currency in 1990. Accurate reproduction of microprint cannot be accomplished as yet by photocopying or by commercially available color photography or color scanners.
Moire Pattern Covert Counterfeit/ First/ A new pattern formed by the super positioning of Simulation, Second two patterns whose periodicities are not identical.
Alteration, Security designs can be made so that a scanner or and Photo copier will only display part of the pattern, Substitution resulting in a visible effect different from the original document. The original image can be designed so that a copy would reveal indication of reproduction - typically showing the word "VOID" or "COPY". This process is also referred to as aliasing.
Opacity Mark Overt Counterfeit/ First The opacity mark, which is similar to a Simulation watermark, is a plastic that contains a unique translucent opacity mark. It is similar in principle Security Feature Type Threat Inspection Description Countered Level and effect to a watermark found in paper documents and enjoys a high level of familiarity as a security feature.
Optical Variable Overt Counterfeit/ First/ Optically Variable Device (OVD) is a general term Device Simulation, Second describing a security feature which changes Photo appearance in some way when the angle of Substitution, illumination or observation is changed. OVDs and Alteration derive their significance for valuable documents and goods from the impossibility of copying them with usual reproduction techniques like color scanners and copiers. OVDs are often distinguished by being identified as either iridescent or non-iridescent.
Optical Overt Counterfeit/ First/ Fine line images can be engineered into optical Watermark Simulation Second WORM media at a resolution over 12,000dpi. The and Alteration optical watermark is then overwritten with a laser-encoded optical image, interlocking in sub-micron register, and a preforrnatted document security feature with a laser encoded personalization security feature. This extremely high resolution is over 4 times higher than current security printing techniques and therefore extremely difficult to simulate. The optical watermark cannot be removed from the reflective optical WORM media nor can it be duplicated or simulated by photocopying, photography or scanning. Attempting to tamper or alter the optical watermark destroys the laser-encoded optical image. The optical watermark is currently used in the U.S. Permanent Resident Card and Border Crossing Card.
Optically Overt Counterfeit/ First Optically variable inks (OW) can be incorporated Variable Inks Simulation into designs to create a striking color shift (for example, green to purple, gold to green, etc.) depending on the angle of light used in viewing the card. This material consists of a transparent colorless ink containing microscopic, advanced multi-layer interference structures. OVI is precious, and production is available to secure printers only. Since the availability of these inks is highly restricted, true counterfeiting is unlikely.
Overlapping Overt Alteration and First Variable data, such as a digitized signature or Data Photo/ text, can be overlapped with another field, such as Signature a photo image. This technique makes it necessary Substitution to alter both fields if either one of them is changed, thereby increasing the tamper resistance of the card by making_it more difficult to alter.
Radio Frequency Covert Counterfeit/ Second/ Use of radio frequency waves to activate and Security Feature Type Threat Inspection Description Countered Level Technology Simulation, Third retrieve information from another source.
Alteration, Photo/
Signature Substitution Rainbow Overt Counterfeit/ First Sometimes called iris printing, involves a very Printing Simulation, subtle shift in color across a document. Well-Alteration designed patterns cannot be accurately reproduced on color copiers or through the use of document scanners. Widely perceived in Europe and Asia as an element of a secure document design, it is commonly used in conjunction with a fine line or medallion pattern in the background of the document.
Redundant Data Overt Alteration First Data can be displayed in more that one location on the ID, thereby raising the resistance to alteration. A simple visual inspection is required to determine if all data fields match. Redundant data can also be displayed in differing colors or fonts.
Retroreflective Overt Counterfeit/ Second Optical constructions that reflect light such that Devices Simulation, covert logos become visible over the entire Alteration and document, and/or overt logos become more Photo/ visible and reflective, when the document is Signature viewed using a focused light source.
Substitution Seal / Signature Overt Photo/ First A type of unique identification that overlaps the over Photo / Signature photo and text area. It can be a specific Information Substitution equipment number, state seal, coat of arms, flag, etc. The significance of this is to deter substituting the photo and/or personal information.
Security Covert Alteration and Second The card periphery on an optical memory card Bonding Counterfeit/ can incorporate a security bonding material with Simulation known characteristics to bond all layers together.
Tampering with the card periphery in an attempt to access internal structures damages the known characteristics within the security bonding. This creates a tamper evident feature.
Security Code Covert Counterfeit/ Second/ It is possible for high-resolution color printing Simulation, Third systems to print a security code within the body of Alteration, the color printed photograph.
For example, a and Theft of security code can be printed in a non-proportional Components font that can imbed characters on the edge or the bottom of the printed picture. The text can be printed on the image in colors that are complementary to the image or in black.
Security Overt Alteration and First/ Transparent layers or films with an integrated Laminate Counterfeit/ Second security feature can be applied to a document Simulation with an adhesive or fused by heat. Available in a Security Feature Type Threat Inspection Description Countered Level number of forms security laminates are designed to protect a document from alteration and provide tamper evidence.
Security Thread Overt Counterfeit/ First/ First seen in U.S.
banknotes the thread is visible Simulation Second by viewing in reflected or transmitted light and and Alteration can have text (positive or reverse) or other features on/in the thread. Security threads can be metal or plastic, transparent or opaque, colored or colorless. With special metallized film, demetallized text is invisible in reflected light and therefore cannot be copied reprographically.
When viewed in transmitted light, however, the opaque aluminum letters are clearly visible.
Specialized Inks Covert/ Counterfeit/ Second/ Special inks have been formulated with specific Forensic Simulation Third elements called taggants. A
remote reader or viewer can detect these elements. By using these inks and measuring their presence, it is possible to identify designated card groupings or types.
These taggant-carrying products are known as smart (or intelligent) inks.
Spot Color Covert/ Counterfeit/ Third Special artwork combined with pantone inks can Forensic Simulation, be used to pre-print images on card core stock Photo/ that cannot be scanned and then printed using Signature cyan (C), magenta (M), yellow (Y) and black (K) Substitution, technologies without a trained observer using a Alteration, simple magnifying device being able to discern and Imposters the difference in the artwork.
Typical laser and inkjet printers use a series of different colored dots that are combined to print the image; the spot color image uses dots of a single color.
Thin-Film Overt Counterfeit/ Second Multiple-layer structures that produce color Interference Simulation effects by interference.
Filters Transparent Overt/ Alteration and First/ It is possible to incorporate holographic effects in Holograms Forensic Counterfeit/ Second a clear, transparent topcoat that can be applied Simulation over variable printing.
Through careful design and physical registration, the clear holographic topcoat can serve as a deterrent to alteration in addition to its counterfeit protection features. If an attempt is made to remove or alter the topcoat, tampering will be detectable without the need of special equipment. Because the transparent hologram design reflects light at differing angles, accurate reproduction with a copier or scanner is cannot be accomplished.
Ultraviolet (UV) Covert/ Counterfeit/ Second Ultraviolet ink, which can be applied either Printing Forensic Simulation, through offset or silkscreen techniques, has long Security Feature Type Threat Inspection Description Countered Level Photo/ been accepted as a security feature for plastic Signature cards. This invisible printing can be produced Substitution, with the availability of a color shift when viewed and Alteration under long-wave UV light sources. UV radiation is not visible to the human eye, but becomes visible when irradiated with a UV light. Custom UV fluorescing colors can be formulated that are not normally available commercially, thereby increasing resistance to counterfeiting.
Void Pattern Covert Counterfeit/ Second A security device consisting of a period structure Simulation as an overt but not visible feature. When copied on a machine with a different periodicity, the resulting moire pattern displays the word VOID
or some other message.
Specific Security Features We prefer a layered security approach. Most preferred is when two or more security features are incorporated into a DL/ID card or a card issuing system that address each of the threat types identified above (e.g., counterfeit/simulation, photo/signature substitution, alteration, imposters, internal fraud, and theft).
Full Color Ultraviolet Ink and Digital Watermarks are preferred as minimum-security features. This would provide both human and machine-readable features for authentication of DL/ID cards. In addition, the cost, expertise, equipment, and materials that it would take to reproduce either of these features make the replication process cost prohibitive for those who would wish to counterfeit these features.
Data That Identifies Easily Defeated Security Measures We are not aware of any data or research that identifies commonly and/or easily defeated security measures and the methods used by counterfeiters to defeat them.
However, our current experience indicates that it is nearly, if not impossible to defeat the current generation of secure DL/ID documents produced using a layered security architecture approach and feature set. As a result, the more sophisticated counterfeiters focus on obtaining, from an illegal means, the equipment and materials necessary to produce the documents.
Other experience has indicated that the ability of the counterfeiter to defeat the security measures in a DL/ID card is related to the sophistication of the DL/ID card.
DL/ID cards with few security features are far easier to counterfeit than the current generation of DL/ID cards. There have been reported incidences of counterfeiting of the older generation of DL/ID cards that are still acceptable in a given state since that particular generation of card had few, if any, security measures. This experience points to the value of a sophisticated state-of-the-art DL/ID card with a layered security architecture. It also suggests that valid card life needs to be of a shorter duration rather than a longer duration to ensure that the latest security technologies are in force and that the older technologies are retired from service.
We have observed that the security features designed in today's generation of DL/ID
cards cannot be counterfeited without the systems used for their legal and authorized production. The equipment used by counterfeiters cannot produce exact copies of properly designed DL/ID cards. The counterfeited documents are most frequently used to obtain age-controlled products and services where the point-of-sale is not equipped to perform sophisticated identification or authentication of the cardholder or validate the authenticity of the DL/ID card (e.g., the counterfeited document is "good enough" to gain admittance to a "21 or over" club).
Minimum Security Features Today a preferred number of security features specified for a DL/ID card is one overt security feature and one covert security feature. We prefer a layered security approach such that each identification card implements at least a minimum number of security features for each level of inspection.
At each inspection level, each document issuing agency preferably can have an option to select from a range of security features to implement in their respective DL/ID card programs in a manner that is consistent with their card design and issuance philosophy.
Common/Interoperable Security Feature Digital watermark technology can provide a common and interoperable security feature that can complement the use of existing machine-readable features and emerging security features such as biometrics. Digital watermark technology can provide a common/standard authentication mechanism across jurisdictions regardless of the DL/ID design and other data carrying features.
Most preferably is a minimum of one and probably at least two interoperable security features used to both authenticate and secure the DL/ID card(s). A possible combination of a digital watermark and a 2D barcode feature could be paired up for multiple levels of layered security and end user interoperable DL/ID
verification.
Aid in Forensic Document Examination We suggest that if a minimum number of forensic security features are specified in the card design specification together with a layered security document architecture, forensic documentation examination will become easier to perform and more conclusive in the results. For example, the following features could be included in a layered security architecture that greatly enhance forensic document examination.
Embedded Digital Watermarking Use of Infrared Ink Use of Full Color Ultraviolet Inks Card Body Material Specifications We prefer a Teslin-enriched or a polycarbonate material be specified for the card body material (or substrate) so that layered security features can be implemented on the DL/ID document.
The card body material can be an enhancement of the DL/ID document as it may interact with the layered security architecture design to provide a complete and secure solution. The card body material may support the security design features, with respect to the printing of the features and the inks used to implement the security features, and interact with the front and back laminates to secure the features. The card body material may also be selected so that any attempt to alter the card invalidates the card rendering it useless.
A Teslin-enriched or polycarbonate card provides a suitable material to enable the layering of security features on the card.
Other Security Features in Card Body Material There are several other security features that could be incorporated into card body materials. These features include: the serialization of the card stock to provide inventory and audit control of the card stock material; the use of forensics to support the identification and authentication of the user; and, the use of ultraviolet (UV) and infrared (IR) inks to prevent fraudulent document duplication.
The use of "Spot" colors incorporated with micro printing can also be used.
"Spot"
colors are virtually impossible to scan and duplicate. We note that a digital watermark can be embedded into a spot color.
Factors in Printing DL/ID Cards = There are often two dimensions to address related to the printing of DL
/ID cards; the location of the print function and the security features printed on the card.
Where a card is printed will affect the security of the print function.
Centrally produced cards benefit from security inherent in the process, including: a single secure printing facility; the ability of the vendor to conduct background investigations and monitor its employees; and, the controlled manufacture and delivery of the cards.
Notwithstanding the method of production ¨ centralized or decentralized ¨ the operator of the capture station should also be controlled throughout the image capture and card printing process.
We sometimes recommend the use of the "Bio Log On" feature to ensure printing station operator authentication and authorization. (A bio-log on features ties an operator to the printing process through an identifier or unique biometric characteristic.). The use of this feature creates an audit trail between the printing station operator and the DL /ID cards printed. In addition the use of a biometric log on feature renders the workstation inoperable to unauthorized users.
Once a jurisdiction has taken actions to control the printing function it can turn to a myriad of printed security features to protect the card from various security threats.
We prefer that Digital Watermarking and, e.g., Full Color Ultraviolet Printing be specified printing features. These extremely complex features protect cards from virtually every security threat, save internal fraud and imposters. Our experience shows that because of the expense, knowledge, equipment, and ability required, reproducing these features is beyond the realm of today's counterfeiters and regeneration artists.
Additionally, we recommend that the following printing features be considered to be included in a minimum feature set for all DL /ID cards.
Deliberate Errors or Known Flaws Fine Line Background Ghost Image Laser Encoded Optical Image Laser Engraving/laser Perforation Microprinting Moire Pattern Overlapping Data Rainbow Printing Security Code Printing Specialized Inks DUD Cards Protected Against Copying It is our assumption that cards are primarily copied for the purpose of subsequent fraudulent and unlawful regeneration. DL /ID cards embedded with Digital Watermarks (DWM) can be designed to be invalid after unlawful duplication and regeneration. Our preferred implementation is that each DL /ID document be embedded with two or more digital watermarks. The two or more digital watermarks working in tandem can provide crosschecking data as well as data alteration detection. Additionally, a DWM may become part of the DL/ID document, e.g., if it is embedded in a feature like an image and, as a result, it would become tied to the document making it highly secure, resistant to counterfeiting and does not take up any real estate on the document. The DWM is generally imperceptible to the human eye, but can be detected using an authorized, audience-specific, secure reader application.
One implementation uses two or more digital watermarks to thwart common driver license document counterfeiting and alteration attacks across multiple user environments. Other implementations use one watermark. Other implementation uses three or more digital watermarks.
Any attempt to create a good simulation of the DL/ID card from a legitimately issued card will be detected using a secure reader device/application. This detection will be made because the modification of data on the card after copying the card image will result in failure to pass the crosschecking of the two digital watermarks' content during the authentication process. In addition, the forensic application capability of the digital watermark can provide the ability to trace the simulated card to its origin.
Other non-machine readable security features that will protect the DL/ID cards from duplication include the use of UV and IR inks, micro printing and the use of "Spot"
coloring. Because of their (color) chemical composition, "Spot" colors are virtually impossible to duplicate or scan.
Personalization Process Secured The following actions identify some of the ways that the personalization process for a DL/ID card can be secured.
Card material, ribbon and lamina features should not be commercially available.
Standardize on Landscape (Over 21) and Portrait (Under 21) DL/ID card types.
Card material could have a unique covert inventory control number that a camera/sensor could read and match to an inventory control list for that facility from the main system. Only if a match is found will the printer print a DL/ID card.
Layered overt and covert for casual, trained, and forensic level security in the card material, printing process, and lamina should be used.
Card Personalization software could have the Graphic Background images loaded from the central site each day and not maintained on a local disk.
All or part of the applicant data could be encrypted and/or could be stored on a removable storage vault device.
Capture Software could be disabled by having key components of the application(s) stored at the central site or on removable storage vault devices.
Biometric logons and final biometric authorization could be used to finalize a transaction and keep a biometric audit of who did what and when they did it.
The following list identifies examples of printing / manufacturing processes that can be used to produce the DL/ID card (from card blank to card personalization).
Standardize on Landscape (Over 21) and Portrait (Under 21) DL/ID card types.
Card materials could have a unique covert inventory control number that a camera/sensor in the printer could read and match the inventory control number to an inventory control list for that facility from the main system.
Only if a match is found will the printer print a DL/ID card.
Layered overt and covert security features for casual, trained, and forensic level security in the card material, printing process, and lamina could be used.
Method for Assessing Greatest Security Risks A jurisdiction could obtain the services of a Materials Science organization such as Digimarc ID Systems' Materials Science organization that could perform an assessment of the security risks associated with their DL/ID documents. A
Materials Science technical staff has the training, experience, and relevant expertise to analyze the DL/ID documents and assess the risks associated with the document, its method of production, the materials used to construct the document, and the features used to secure the document. Based on the analysis, a risk assessment can be prepared together with recommendations on ways to increase the security level of the document and reduce security risks.
Secure Card against Alteration and Counterfeit A layered security architecture and associated security features provides a method that to deter alteration or counterfeiting. In addition to printed security features, lamination security features, the use of Digital Watermarks, and biometrics, other physical methods of securing the DL/ID can include the use of multiple physical design templates for specific user groups. For example, Age Group Card Layout templates can be created for DLs issued to operators under 21 and 21 and over.
Typically, a vertical or portrait layout is used for the under 21 DL and a horizontal or landscape layout is used for the 21 and over DL. Similarly, templates can be designed specially for a child ID.
Layered Security We suggest a layered security architecture, as discussed throughout this document, for DL/ID card physical security. We suggest that a layered security architecture that is built on overt features, covert features, and forensic features will lead to DL/ID
documents with the most robust physical security features supported by current technology.
Business Processes We suggest that there are business processes in card issuance that can impact the overall physical security of DL/ID cards. The following list identifies some of the processes that can be reviewed and assessed to determine the impact of the physical security of the DL/ID card.
Type of Card Issuance (Central Issue vs. Decentralized Issue) - The physical security of central issuance is significantly greater than the physical security of decentralized issue due to the reduced number of facilities to secure. A highly secure single facility allows tighter control of employees, equipment, consumable supplies (e.g., card stock, laminates, ink, etc.) and allows for easier surveillance than multiple sites that would be included in decentralized issue environment.
Operator Background Checks - In addition to the production of a secure DL/ID document it is equally important to protect against the security threat presented by system operators. All persons associated with the production and issuance of DL/ID documents preferably undergo a complete background check by a law enforcement agency such as the Federal Bureau of Investigation and be subject to periodic review and update. Additionally, the use of a "Bio Log On" security feature to ensure that personnel associated with the production and issuance of DL/ID
documents are authenticated and authorized to perform their job function can be used.
Customer Processing ¨ As part of a layered security architecture the use of Biometrics to increase the physical security of the DL/ID card issuance process is preferred. A combination of security features associated with the printing of DL/ID documents and biometrics (e.g., facial recognition systems and fingerprint matching systems) can significantly reduce the probability of fraud in the DL/ID issuance process.
Reasons for Centralized Issuance We suggest that central issuance is the most secure approach to document issuance.
The following list identifies some of the reasons to consider centralized issuance.
Easier and more cost effective to maintain as well as deploy system enhancements and take advantage of new technology with centralized issuance Quality, uniformity, and processing of DL/ID documents are easier to control with centralized issuance Multiple levels of collusion required to defraud centralized issuance More secure protection against equipment and/or unique materials theft Processing speed is greater with centralized issuance Easier to train operators with centralized issuance Advantages to Decentralized or Hybrid Issuance Systems Nevertheless, there are some advantages for jurisdictions to continue decentralized or hybrid issuance. Decentralized issue enhances security because card delivery is controlled. No cards are lost, returned as undeliverable, or stolen from the mail.
Hybrid systems allow jurisdictions to concentrate security investigations on specific target groups, which allows for increased return on their security investment.
Organizationally, these methods provide a high level of customer service. The applicant is presented the document on demand and is equipped with proper identification immediately. The flexibility of these methods easily allows for emergency and special issuance (employee access cards, Child ID cards, travelers, etc).
In addition, decentralized issuance complements the information technology infrastructure that provides the ability to qualify applicants on-the-spot.
Budgets can safely be constructed for decentralized issuance without the need to account for unscheduled postage hikes. Finally, these methods accommodate jurisdictions that historically use third party providers to issue the cards.
Jurisdictions should consider the following practices to secure decentralized systems of issuance.
Operator bio-logon Serialization of card stock Secure storage and inventory of consumables Graphic images stored off-site Purge hard drives daily No batch updates of work Encryption of all data Security Recommendations That Effect Maximum Card Lifecycles We suggest that there is a relationship between DL/ID document security features and document lifecycles. An important security consideration is the physical change that occurs over time to the cardholder that can effect the authentication of the card.
For example, the physical appearance of the cardholder may change significantly over extended periods of time due to the natural aging process making a DL/ID image obsolete. There is also some evidence that biometrics are impacted by time.
The current recommendation is that finger images and facial images be revised every five years.
Another consideration is based on the rate of change of technology. As technology is constantly changing, these changes impact the security features implemented in a DL/ID document. As technology improves and enables the deployment of more sophisticated features, it also may become easier to defeat a security feature based on older technology. Longer document life cycles may actually provide an unintended opportunity for counterfeiters or fraudulent production of DL/ID documents based on older security features. Shorter document life cycles ensure that the most current security technologies are deployed and that the older DL/ID documents are removed from circulation.
Methods for Conducting Risk Assessment of Cards The following list identifies resources for Risk Assessment.
Digimarc ID Systems Card Material Science and Process Analysis Groups IAFCI - International Association of Financial Crimes Investigators Secret Service - Identity and Credit Fraud Postal Inspectors Bank Investigators International Association of Chiefs of Police
Alteration in conjunction with card copying can be detected from the absence or condition of the io _____ fragile watel niark.
Fourth Embodiment ¨ Linking [O081] In our fourth embodiment we provide a machine-readable link to related information. The machine-readable link is preferably provided via a digital watermark payload or identifier. The identifier can include a unique number that is used to interrogate a database or access a remote resource. In some cases the identifier includes a URL or a code that is used to access an appropriate URI_ In a driver's license scenario, a digital wateithark includes a link to an insurance database. The database includes data records evidencing that a cardholder does or does not have car insurance.
In other cases, the digital watermark includes a link to a DMV database, to allow verification of information printed on the identification document, and perhaps a photograph of the cardholder. The database cardholder can be compared against the person presently holding the card. A "photo swap" can be further detected from comparison of a database photograph with a photograph carried on the card and a visual inspection of the current cardholder. The techniques discussed in assignee's U.S.
Patent No. 6,947,571, and in U.S. Patent 6,408,331 can be suitable interchanged with this linking aspect of the present invention.
Fifth Embodiment - Legacy Detection [0082] Our fifth embodiment relates generally to handling ID documents including so-called legacy ID documents. The term legacy is used to generally refer to documents, which were previously produced with or without a particular feature like a digital watermark, but which differ in some manner from newly produced documents (e.g., they have or lack the feature). Consider a passport-issuing scenario in which renewal dates are spaced far apart (e.g., 10 years). Unless a total recall of old passports is issued, the population of outstanding passports will include both old passports (e.g., legacy documents) and new passports (e.g., which may include digital watermarking).
[0083] A challenge results for an ID document authentication process that authenticates a population of ID documents including both legacy documents (e.g., with no watermarking) and watermarked documents. To address this challenge we provide methods and systems to determine whether a digital watermark should be present in a document or whether the document was produced prior to the introduction of watermark embedding.
[0084] Assignee's U.S. Published Patent Application No. US 2002-0080994 Al discusses a situation where a smart card carries information to trigger a watermark reader to look for a digital watermark. The trigger handles a case of legacy cards. In other words, the trigger serves as an indication to a watermark reader to check for a digital watermark. This allows reading new and legacy documents by the same reader.
[0085] We expand these techniques to further help differentiate between watermarked and non-watermarked ID documents, and/or to decide whether to search for a digital watermark on an ID document.
[0086] With reference to FIG. 4, ID document 100 includes a plurality of features including machine-readable features. The machine-readable features may include, e.g., a barcode (e.g., 1 or 2D barcodes) 60, magnetic stripe 27, optical memory (not shown), electronic circuitry (not shown), text for optical character recognition, etc., etc.
[0087] In a first implementation a machine readable feature includes a watermark search or detection trigger. For example, an issue date, or bits corresponding to an issue date, is stored in a magnetic stripe, optical memory, a barcode or other machine-readable indicia. The issued data serves as a "trigger" to evidence whether and ID
document should or should not including watermarking.
[0088] With reference to FIG. 4, a reader, e.g., a barcode reader, a magnetic stripe reader, optical memory reader, optical character recognizer (OCR), etc., obtains a watermark trigger (e.g., issue date). Instead of an automated reader as shown in FIG. 4, an operator manually enters the trigger, e.g., manually enters the issue date.
Of course, other information may trigger a watermark detection process like an expiration date, issuer code or jurisdictional identifier.
[0089] An authenticator (e.g., a processor under the control of software) uses the trigger to determine whether to carry out a watermark-based authentication procedure.
For example, the issue date may correspond with a date that indicates that a digital watermark or a plurality of digital watermarks should be present on an authentic ID
document. If so, the authenticator directs a digital watermark verification process, like is discussed in the above embodiments, to determine whether a digital watermark is present. Or the issue date may indicate that the ID document was produced before digital watermarks were rolled out into production (e.g., indicating a so-called legacy card). The authenticator then skips or disables a watermark detection process and/or authenticates the ID document using a different authentication technique.
[0090] In an alternative, but related, implementation, an authenticator directs a watermark detector to analyze optical scan data corresponding to an ID
document. The scan data is searched for a digital watermark or for a plurality of digital watermarks. If the watermark detector is unable to find a digital watermark, the authenticator looks for a legacy indicator. For example, an issue date or expiration date is used to determine whether the BD document is a legacy document; or an operator is prompted to enter an issue or expiration date, or to enter a determination as to whether the ID
document is a legacy card.
1() [0091] In another implementation we check for a legacy indicator (e.g., issue date) regardless of whether a watermark is detected. This implementation addresses a counterfeiting scenario where a watermarked feature (e.g., a watermarked photograph) is lifted from an authentic watermarked ID document and pasted onto a legacy document that should not include a digital watermark. If a watermark is found, but the , legacy indicator suggests that a watermark should not be present, the ID
document is considered suspect.
[0092] A client code can be combined with an issue date or expiration date to indicate which documents should or should not include digital watermarks. A "client code" is broadly used herein and may include, e.g., a code to identify a particular client or a particular type of identification document. The client code can be associated with a particular issue or legacy date, to help identify whether an identification document should or should not include digital watermarking. For example, a client code for a sports arena can be used to signal that all employee badges issued after January 1, 2003 should include a digital watermark or a plurality of digital watermarks. And a client code for an airport tarmac crew can be used to signal that all security badges issued after, e.g., April 15, 2003 should include a digital watermark or a plurality of digital watermarks. A magnetic stripe or barcode (or other machine-readable feature) carries the client code. An authenticator uses the client code to make a determination, for a particular client, as to whether a digital watermark should be present. (An authenticator can manage various client codes and relevant legacy dates via, e.g., a look-up table, software programming or by accessing a local or remote database.). By way of further illustration, an authenticator receives the airport's tarmac crew client code from a security badge. The issue date for the security badge is March 11, 2003. The authenticator then knows that a digital watermark should not be present. Or the authenticator receives a client code corresponding to the sports arena. The corresponding employee badge was issued on June 23, 2003. The authenticator then expects to find digital watermarking on the employee badge. Of course, client codes can be assigned to other entities, like states, nations, companies, etc.
[0093] An authenticator is provided in another implementation to operate primarily between two different modes. Consider FIG. 5, where a versatile authentication process toggles between two authentication branches depending on a watermark detection trigger. The process is carried out, e.g., through a processor or electronic processing circuitry controlled by software. The trigger is analyzed to determine whether an ID
document is expected to include digital watermarking embedded therein. If watermarking is expected, optical scan data is analyzed to recover the watermarking. In a two-watermark implementation, payload data is obtained from each of the two watermarks. The payload data, or subsets of the payload data, is compared to determine whether the document is authentic. Of course, if the watermarking is not recoverable, the document is considered suspect (e.g., potentially a counterfeit or unauthorized document).
[0094] If the trigger indicates that the ID document is not expected to include watermarking then the ID document is authenticated using a non-watermarking technique. For example, in one implementation the issue or expiration date (with perhaps a client code) is used as a trigger. If the issue date indicates that watermarking is not expected, another authentication clue, like a bearer's birth date, is obtained from the ID document. A birth date can be machine-read, e.g., from a magnetic stripe, optical memory, electronic circuitry, and/or barcode (e.g., PDF-417, 1-D
barcode, etc.).
The birth date can also be obtained from a remote repository, e.g., which is interrogated with a document number (e.g., driver's license number). A birth date obtained from such methods (e.g., machine-read, remote access, etc.) is referred to as a "stored birth date." The stored birth date is then cross-correlated with a birth date that is printed or otherwise carried on the ID document. The printed or otherwise carried birth date is called a "carried birth date." In some cases the carried birth date is carried via a machine-readable feature. For example, the stored birth date is conveyed through a barcode, while the carried birth date is carried by a magnetic stripe.
Retrieving the carried birth date for cross-correlation with the stored birth date can be machine-aided (e.g., with OCR input of a printed birth date), or can be aided by an operator entering the birth date as printed on the ID document. The cross-correlation correlates the stored birth date with the carried birth date. The document is considered authentic when the carried and the stored birth dates correspond. Of course, if either (or both) of the carried or stored birth dates is not recoverable, or is not obtained, the document is considered suspect. Thus, this implementation provides a watermark readable/non-readable authenticator. (Instead of a birth date, other bearer or document specific information like an address (or a hash of an address), name (or hash of a name) or document number (or hash of a document number) can be suitably interchanged.
The term "hash" in this context implies a reduced-bit representation of a larger number, value or character string.) [0095] In still further implementations we add or change a feature on an ID
document to signal that the ID document includes a digital watermark. For example, we shift or reposition a photograph carried by the ED document. Instead of positioning the photograph in the upper, left hand corner of the document, we position the photograph in the lower right hand corner, or we offset the photograph by a predetermined spacing.
Or we print text (e.g., birth date) in a color (e.g., green) or with a different font. Still further we can place a machine-readable feature in artwork (e.g., a predetermined frequency response due to repetitive spacing of artwork features or lines).
These features can be used to trigger (either manually or automatically) watermark detection.
Or we can add a predetermined laminate, perhaps embossed or laser engraved features, which can be used to signal watermark detection. Related is a certain type of card stock ¨ perhaps textured with machine-readable code ¨ that signals digital watermarking.
Indeed, most of the security features detailed in Appendix A can be used to signal the presence of a digital watermark. In still further implementations, we add a feature that can be pattern recognized. For example, we add a graphic that resembles a triangle.
After capturing image data, a pattern recognizer searches the image data for the expected triangle. If found, the triangle signals an expected presence of digital watermarking.
[0096] Sometimes we prefer to add more subtle features to signal the presence of a digital watermark. In one implementation we shift the spatial starting position of text relative to other document features. For example, a document bearer's printed name or employee number can be spatially shifted with respect to the bearer's photograph. The spatial distance between a starting point of text and a photograph (e.g., a lower right hand corner of the photograph) can be machine-measured and used to trigger watermark detection. Of course, instead of shifting text, we can subtly reposition graphics or other artwork as well. In other cases we trigger off of an identification document number.
For example, the number may include an extra character (e.g., the seventh or eighth character in) or a leading one or zero can be used to indicate digital watermarking. In other cases we use a plurality of characters, e.g., the last four characters or every other character to indicate the presence of digital watermarking.
[0097] While we have discussed handling legacy documents with respect to digital watermarking, this embodiment of the present invention is not so limited. Of course, our techniques apply to triggering detection of other types of machine-readable features or identifying other types of legacy documents as well.
[0098] A few illustrative combinations are shown below. Of course, these combinations are not meant to limit the scope of this aspect of the invention.
Rather, the combinations are provided by way of example only.
[0099] Cl. An identification document authenticator operable to authenticate an identification document through a digital watermarking authentication process or through a non-digital watermarking authentication process, a process being selected depending on a detection trigger, said authenticator comprising:
electronic processing circuitry;
a system communications bus;
memory in communication with the electronic processing circuitry via the system communications bus, said memory comprising instructions for processing by the electronic processing circuitry, said instructions comprising instructions to:
analyze data corresponding to the detection trigger;
determine whether the data indicates an expected presence of digital watermarking in the identification document, and if so indicated, authenticate the identification document through the digital watermarking authentication process; and determine whether the data indicates an expected absence of digital watermarking, and if so indicated, authenticate the identification document according to the non-digital watermarking authentication process.
[0100] C2. The authenticator of Cl, wherein the identification document carries the detection trigger.
[0101] C3. The authenticator of any one of Cl or C2, wherein the detection trigger comprises a document issue date [0102] C4. The authenticator of any one of Cl or C2, wherein the detection trigger comprises a document expiration date.
[0103] C5. The authenticator of C2, wherein the detection trigger is carried by a machine-readable feature.
[0104] C6. The authenticator of C5, wherein the machine-readable feature comprises at least one of a barcode, magnetic stripe, optical memory and electronic circuitry.
[0105] C7. The authenticator of Cl, wherein the non-digital watermarking authentication process comprises a cross-correlation of first and second instances of bearer or document specific information carried by the document.
[0106] C8. The authenticator of C7, wherein the first and second instances each comprise data corresponding to a birth date.
[0107] C9. The authenticator of C7, wherein the first and second instances each comprise data corresponding to a name.
[0108] C10. The authenticator of C7, wherein the first and second instances each comprise data corresponding to a document number.
[0109] C 1 1 . The authenticator of C7, wherein the first and second instances each comprise data corresponding to an address.
[0110] C12. The authenticator of claim CI, wherein the digital watermarking comprises a first digital watermark including a first payload and a second digital watermark including a second payload.
[0111] C13. The authenticator of C12, wherein the digital watermarking authentication process comprises at least a cross-correlation of some of the first payload with at least some of the second payload.
[0112] C14. The authenticator of Cl, wherein the memory comprises electronic memory circuits.
[0113] C15. The authenticator of C14, wherein the electronic processing circuitry comprises a processor.
[0114] C16. The authenticator of Cl, wherein the memory comprises at least one of removable memory and fixed memory.
[0115] C17. The authenticator of Cl further comprising an input device.
[0116] C18. The authenticator of C17, wherein the detection trigger is manually entered into the authenticator via the input device.
[0117] C19. The authenticator of C17, wherein the detection trigger is machine-read into the authenticator via the input device.
[0118] C20. The authenticator of C17, wherein the input device comprises at least one of a key pad, mouse, magnetic stripe reader, optical memory reader, optical sensor, barcode reader, touch screen and smart card reader.
[0119] Dl. A method to determine whether to authenticate an identification document through a digital watermark authentication process, wherein the identification document comprises a detection trigger, said method comprising the steps of:
receiving digital data corresponding to the detection trigger;
if the detection trigger indicates an expected presence of digital watermarking, analyzing optical scan data to decode the digital watermarking; and if the detection trigger indicates an expected absence of digital watermarking, providing an indication that the identification document is a legacy document.
[0120] D2. The method of claim D1, wherein the trigger comprises a document issue date.
[0121] D3. The method of claim D1, wherein the trigger comprises a document expiration date.
[0122] D4. The method of any one of DI-D3, wherein the document comprises a magnetic stripe, and wherein the trigger is stored by the magnetic stripe.
[0123] D5. The method of any one of Dl-D3, wherein the document comprises electronic circuitry, and wherein the trigger is stored in the electronic circuitry.
[0124] D6. The method of any one of D1-D3, wherein the document comprises a machine-readable feature, and wherein the trigger is conveyed through the machine-readable feature.
[0124] D7. The method of D6, wherein the machine-readable feature comprises a barcode.
[0125] D8. The method of DI, wherein the trigger comprises a client code.
[0126] D9. The method of D8, wherein the trigger further comprises at least one of a document issue date and a document expiration date.
[0127] DIO. The method of D1, wherein the providing an indication comprises disabling or foregoing a watermark detection process.
[0128] D11. The method of D1, wherein the providing an indication comprises outputting a signal to indicate that the document is a legacy document.
[0129] D12. The method of D11, wherein the signal is displayed through a graphical user interface.
[0130] D13. The method of D11, wherein the signal activates a warning.
[0131] D14. The method of claim D11, wherein the signal controls or initiates an automated, but non-watermarking based, authentication process.
Sixth Embodiment - Plural Watermarks [0132] While some of the above embodiments have envisioned enhanced identification document security through embedding of two digital watermarks, the present invention is not so limited. Indeed, the inventive techniques discussed herein will apply to identification documents including three or more watermarks as well. For example, watermark payload correspondence as discussed under the Second Embodiment can involve three or more watermarks.
Advantages of Watermarking Identification Documents [0133] Some advantages provided to identification documents by digital watermarking may include the following bullet list. Of course, this list is not meant to limit the present invention, and many of the disclosed embodiments need not include such advantages. By way of illustration only, some watermarking advantages include:
= A covert security feature, since a watermark is not generally visually discernible.
= No significant impact on an identification document's limited "real estate."
= When deployed across multiple areas, a simple, common authentication mechanism (watermark) is provided when optically reading the identification document. This addresses the complexity issues related to detecting false documents. In a driver's license context, both documents with and from out of state can be authenticated.
= Linking to a database (e.g., a DMV, insurance database, etc.) can be enabled, based on policies set and enforced by each document issuing government or organization. Watermark reading software can be implemented to provide access to software based on government or organization policy and reading audience, or alternatively, in-state/out-of-state status.
= By providing a linking mechanism versus encoding information on the document itself, inappropriate access to cardholder personal data is prevented.
Also, if a government's policy regarding data access for a certain audience changes, this can be implemented in the reader software, enabling dynamic policy changes, without having to reissue identification documents.
[01341 Some advantages of watermarking to government agencies (e.g., DMV, law enforcement officials, and other authorized audiences) and financial institutions are discussed in the following bulleted list. Of course, this list is not meant to limit the =
present invention, and many of the disclosed embodiments need not include such advantages. By way of illustration only, some watermarking advantages for government agencies include:
= DMV forensics agents can detect cards that have been copied and altered, as well as track back to the originating card(s).
= Point of sale agents for age-controlled products can locally authenticate a card with respect to card authenticity and age status, without gaining machine-readable access to the individual's demographic data and compromising = cardholder's privacy. Watermarking may also provide an ability to read cross-jurisdictional identification documents thus providing better data sharing.
= Any inspector equipped with a digital watermark reader can detect "simulated" cards.
= The common "photo swap" attack can be automatically detected (e.g., see the first and second embodiments discussed above).
= Text alterations and/or substitutions on otherwise legitimate documents can be automatically detected.
= Insurance verification can be provided to Law Enforcement by linking to an insurance company database, using the watermark identifier information.
= Law enforcement or other authorized users, with the appropriate authorizations and privileges, can selectively and securely link to "back-end"
databases for access to photos, biometrics, demographics, and outstanding warrants via a simple imaging or scanning of the identification document.
= Crosschecks on a cardholder's name can be done so that financial institutions can further authenticate identity.
Detecting Media Areas Likely of Hosting Watermarks Orientation components [0135] The subject matter in this section relates to assignee's U.S. Patent Application Nos. 10/032,282, filed December 20, 2001 (published as US 2002-0114491 Al) and 09/945,244, filed August 31, 2001 (published as 20020057823 Al).
[0136] Steganographic calibration signals (sometimes termed "marker signals,"
reference signals," "grid signals," or "orientation components," etc.) are sometimes included with digital watermarking signals so that subsequent distortion of the object thereby marked (e.g., a digital image file, audio clip, document, etc.) can later be discerned and compensated for. Such arrangements are detailed in the related applications.
[0137] One type of watermark orientation component is an image signal that comprises a set of impulse functions in a transform domain, like a Fourier magnitude [0138] An exemplary orientation signal may include one or more of the following characteristics:
20 1. It comprises a collection of impulse or delta functions in the Fourier magnitude domain;
2. The impulse functions have pseudo random phase (i.e. the phase is random, yet the phase is known so that translation (e.g., its X and Y
origin) of the watermark can be computed by correlating the know phase 25 information of the calibration signal with the watermarked signal);
and 3. The impulse functions are typically distributed in the mid-frequency range so as to survive distortion yet not be perceptible [0139] In other embodiments, different orientation components can be used in blocks, pre-filtered, and then converted into the Fourier domain. The Fourier representation for all the component blocks can be accumulated, filtered, and remapped into the log-polar domain.
Multiple Watermarks on Printed Documents [0140] As discussed above, some watermarking implementations include a printed document having a plurality of digital watermarks embedded thereon. We have developed methods and systems to quickly identify areas where the digital watermarks may be embedded, and then focus decoding efforts on the identified areas, particularly when each of the embedded digital watermarks includes an orientation component (or calibration signal). Message decoding efforts can focus on areas identified as likely candidates of including a digital watermark.
[0141] We choose to illustrate our inventive methods and systems with respect to printed documents, such as financial documents, e.g., checks, banknotes, financial instruments, legal instruments and identification documents. Some financial and identification documents may include so-called radio frequency identification circuitry (RFID), smart card chips or circuitry, optical memory, magnetic memory, etc.
Of course, our techniques apply to other objects and media (e.g., digital images and video) as well.
[0142] FIG. 6 illustrates a printed ID document 100. ID document 100 preferably includes a photographic representation 102 of a bearer of the ID document 100.
The photographic representation 102 may include, e.g., a background portion 102a and a likeness of the bearer portion 102b. The ID document 100 will typically include printed indicia like text (e.g., name, address, jurisdiction, document number, birth date, etc.), machine-readable code (e.g., 1 or 2-D barcodes ¨ not shown in FIG. 6), graphics, background patterns, seals, emblems, artwork, etc. Sometimes the printed indicia is printed with visible or invisible (e.g., UV or IR) inks. Of course, the ID
document 100 may include a wide variety of other features like optical or magnetic memory, microprinting, holograms, Kinograms0, electronic circuitry (e.g., a so-called smart card), ghost or faintly reproduced images, etc., etc.
[0143] ID document 100 includes a plurality of watermarks embedded thereon. To simplify the discussion ID document 100 includes two (2) digital watermarks.
It should be appreciated, however, that our techniques apply to documents including one and three (3) or more digital watermarks as well.
[0144] A first digital watermark is embedded in the photographic representation 102 to (FIG. 6). The first digital watermark can be embedded in the background portion 102a, embedded in the likeness portion 102b, or embedded in both portions 102a and 102b.
In our preferred implementation we redundantly embed the first digital watermark throughout the photographic representation 102 or a portion of the photographic representation 102. The first digital watermark typically includes an orientation component (hereafter called a "first orientation component") and a first message component. The first orientation component is embedded at (or is embedded so as to represent) a first orientation. For example, the first orientation corresponds to a first scale, rotation and/or translation. Translation can be a measure or reflection of a distance or relationship to a predetermined origin or spatial location (e.g., the upper left comer of the identification document). An orientation component may also reflect a particular message starting position or location. If the first digital watermark is redundantly embedded throughout the photographic representation 102, the redundant instances of the first orientation component preferably include the same (or at least closely similar) first orientation.
[0145] A second digital watermark is embedded in area 104. Area 104 includes a graphic, seal, background area, artwork, ghost image, photographic image, hologram, Kineogram0 or line art, etc. (hereafter generally referred to as "artwork"), in which the second digital watermark is embedded. The artwork may overlap with text or other document features. While area 104 is illustrated as a bounded and limited area, area 104 can alternatively occupy much larger or smaller document 100 areas. In our preferred implementations we redundantly embed the second digital watermark throughout area 104. The second digital watermark typically includes an orientation component (hereafter called a "second orientation component") and a message component. The second orientation component differs from the first orientation component. The difference may be subtle such as a difference in embedding scale, rotation or translation, or may explicitly differ in terms of a different calibration technique or embedding protocol.
[0146] The second orientation component is preferably embedded at (or is embedded so as to represent) a second orientation, e.g., at a second scale, rotation and/or translation. If the second digital watermark is redundantly embedded throughout area 104, the redundant instances of the second orientation component preferably include the same second orientation.
[0147] Thus, the first and second digital watermarks each preferably include an orientation component that differs from one another (e.g., the orientation components differ in terms of scale, rotation and/or translation, etc.) or differs relative to a know or predetermined orientation component.
[0148] A digital watermark detection process is discussed with respect to FIGS. 7 and 8A-8C. ID document 100 is presented to a sensor 110 (FIG. 7). Sensor 110 can take a variety of forms. For example, sensor 110 may include a flatbed scanner, an optical senor or array, a CCD optical sensor, a handheld device, web camera, a digital camera (e.g., as is commonly associated with today's cell phones or handhelds), etc.
Sensor 110 captures scan data (or "image data") that represents ID document 100 or a portion of the ID document 100. The captured scan data is communicated to a watermark detector 120 (e.g., electronic processing circuitry controlled by software).
[0149] Watermark detector 120 is configured to analyze windows or image areas (e.g., blocks, image portions or segments), in search of watermark orientation components or in search of characteristics that are associated with watermark orientation components.
For example, the watermark detector 120 analyzes scan data associated with a first window 60a (FIG. 8A). The window sizes can vary according to detector specifications. To illustrate, we select a window, e.g., having 32X32 pixels, pixels or 128X128 pixels.
[0150] We prefer a sliding window approach for our detector. That is, after the watermark detector 120 analyzes image area 60a, it analyzes an adjacent, perhaps even overlapping, window area 60b, and so on until it analyzes a last window 60n for a first window row (FIG. 8B). The window can be repositioned to analyze additional windows (e.g., 62a-62n) until it analyzes a last row of windows (64a-64n) as illustrated in FIG. 8C. Of course, the detector 120 can alternatively select windows at random (or pseudo-random), or select windows corresponding to a central area of the ID
document 100. Also, a first window 60a need not be selected from the upper left hand corner of the ID document 100, but can be selected from other starting image portions as well. In still further alternative implementations, once a watermark has been found in a particular window, the detector analyzes adjacent windows, and then branches out from the adjacent windows.
[0151] While not necessary to do so, the watermark detector 120 preferably analyzes all of the captured image data. (Alternative implementations only look at a subset of the captured image data.). To illustrate, e.g., if the scan data corresponds with a 1024X1280 pixel area, and if 64X64 pixel windows overlap by 50 percent, about windows are analyzed. Of course the number of windows will decrease as the window size increases and/or as the overlap area decreases.
[0152] Each window or image portion is preferably classified in terms of its orientation characteristics. For example, the detector 120 compares an orientation of each image window or block (some of which may include no watermark signal at all) to that of a predetermined orientation (e.g., an orientation corresponding to an expected watermark orientation component). A metric or measure can be used to classify each image portion in terms of its determined orientation or in terms of its determined orientation relative to the predetermined orientation. An orientation measure may include factors such as rotation, scale, translation, etc.
[0153] The detector 120 (or a computer cooperating with the detector 120) remembers or groups together those windows or image portions which have the same metric or orientation measures. The term "same metric" is broadly used and may include an exact sameness or the metric may include a tolerance. For example, orientations falling within plus-or-minus 1-10 degrees (for rotation) may be grouped together, or those falling within plus-or-minus 2-10% scale or translation might similarly be grouped.
After grouping the blocks, the detector (or a cooperating computer) sifts through the groupings to identify predominate groups. The two most predominate groups will likely correspond to one of a first watermark orientation component and a second watermark orientation component.
[0154] FIG. 9A shows a histogram illustrating a relationship between classified blocks (where the z axis represents a number of image windows having a particular orientation) in terms of scale (x axis ¨ in terms of a scale relative to a predetermined scale) and rotation (y axis ¨ in terms of rotation angle in degrees from a predetermined angle). As shown, the histogram includes two strong peaks, each at different orientations. To be more precise, the two peaks share the same rotation, but differ in terms of scale. The peaks correspond to the first watermark orientation component at a first rotation and first scale, and a second watermark orientation component at the first rotation, but second and different scale. The histogram provides a tidy graphical analysis to determine blocks with the same (or closely similar) orientation values. The small peaks in FIG. 9A correspond to image windows that include various orientation values (e.g., images areas that do not have a digital watermark orientation component embedded therein).
[0155] There may be some cases in which the two or more watermark components have the same rotation and scale. For example, only a single predominate peak is seen in FIG. 9B since the first and second orientation components include the same rotation and scale. In these cases other orientation parameters, like translation, can be analyzed to distinguish between different orientation components. These other implementations may include an orientation metric, which includes a translation factor. Image portions can be plotted or analyzed in terms of their orientation metrics as shown in FIGS. 10A-10D. More precisely, FIG. 10A shows an identification document including two watermarks redundantly embedded therein (shown by the two "grids" ¨ one solid and one dashed ¨ where each grid tile represents a redundant instance of a watermark or watermark component). Each of the watermarks includes a different translation with respect to an upper left corner (or other predetermined origin) of the identification document. As a watermark detector analyses the document as discussed with reference to FIGS 8A-8C it may determine a particular translation value for each window.
Since the redundant instances will have the same translation values (perhaps after adjustment for relative tile positioning within the first or second grids), watermarked areas can be determined. FIG. 10B and 10C illustrate document areas having the same relative translation in terms of x-translation and y-translation. Windows can be grouped together based on similar translation values as shown by the histogram in FIG.
10D.
The predominate two groups identify likely locations of the first and second watermarks, since they have common translation values.
[0156] Once predominate orientations are identified, document areas 80 and 82 shown in FIG. 11A (or areas corresponding to scan data including the predominate orientations) can be identified. The identification may involve, e.g., determining which image portions have an orientation corresponding to predominate orientations or which image portions fall within the predominate groups. Areas 80 and 82, or image windows corresponding to areas 80 and 82, can be further analyzed to detect a watermark message. (Areas 80 and 82 in FIG. 11A are intentionally drawn with jagged or varying boundaries. The variation may be caused in some implementations, e.g., where the sample windows do not precisely correspond with embedding areas boundaries.).
[0157] Sometimes we may see an isolated window 84 identified as shown in FIG.
11B. The isolated window may be identified as likely including a watermark because is has an image or noise orientation that is similar to one of the selected watermark orientation components. We optionally test for isolation to jettison such an isolated block 84, since the isolated block is not likely to include watermark information, but rather reflects noise having a similar orientation. One method tests each selected window to ensure that it has at least one or more neighboring selected windows. If it does not, the isolated window 84 is disregarded.
[0158] As an alternative grouping technique, a watermark "strength" is determined for each window. Each image window then has an orientation metric and a strength metric associated therewith. The strength metric is a representation of a watermark characteristic, or a relative correlation between an expected watermark signal and the detected watermark signal. Windows are grouped according to their orientation metrics, but are represented according to a collective strength of all of the windows in a group (e.g., we add together the strength metric for each window within a group).
Groups are then represented in terms of collective group strength and not in terms of the number of windows within a group. A strength metric provides an even more prominent indication of watermarked windows, e.g., as shown by the histogram peaks in FIG. 12.
[0159] As a further alternative approach, we filter image data or histogram data to help jettison unwanted noise. This approach even further increases the prominence of window groups or peaks over background noise.
[0160] Our approach saves processing time since only those areas including watermark orientation components are further analyzed to detect a watermark or payload message.
Copy Detection [0161] In addition to reducing processing time and ensuring better watermark detection, our techniques may be used as a copy detection tool.
[0162] Consider a financial document like a check. A common counterfeiting technique "cuts and pastes" (perhaps digitally) features from one check to another check. For example, a counterfeiter may cut and paste a bank seal or logo from one check onto another.
[0163] To help detect a copy we provide a document (e.g., a check from Bill's Bank) with two embedded digital watermarks. Each of the first and second digital watermarks includes a first and second orientation component, respectively. The first and second orientation components have a known relationship to one another or a known relationship to a predetermined orientation component. To simplify the discussion, lets say that the first orientation component has a scale that is 82% of an expected scale, and the second orientation component has a scale that is 78% of an expected scale.
[0164] A watermark detector can expects to find the relative scales for the first and second orientation components in order to authenticate Bill's check. (Of course, the detector can account for any optical sensor discrepancies, such as unwanted scaling relative to the printed check.).
[0165] The document is considered suspect if the orientation components' scales are not as expected.
[0166] In some implementations, each bank (or client type) includes a unique orientation component relationship between its watermarks. For example, if the customer or account is associated with a commercial endeavor, then the orientation components are related according to a first predetermined relationship. But if the customer or account is associated with a government endeavor then the orientation components are related according to a second predetermined relationship, and so on.
[0167] A third watermark or watermark component can be used to convey the predetermined relationship or a watermark detector can be configured to expect a certain relationship.
[0168] Even if the counterfeiter is careful when replicating a predetermined scale and rotation, it remains difficult to properly align the multiple watermarks to achieve a predetermined translation.
[0169] Our copy detection also works with ID documents where a counterfeiting technique involves photo or feature swapping. A first watermark is embedded in a photograph, and a second watermark is embedded in a background or artwork.
Each of the first and second watermarks includes an orientation component. The orientation components have a predetermined relationship to one another or to a control orientation component. Scan data is collected and orientation parameters are determined.
The determined orientation parameters are analyzed to detect a counterfeit document or photo swap. (Different issuers (e.g., state or country) can include a unique orientation component relationship. If the relationship is not what is expected for the issuer, then the document is considered suspect.).
[0170] In alternative implementations a financial document or ID document includes a visible fiducial or overt structure printed or engraved thereon. Orientation parameters are determined relative to the visible fiducial or structure. For example, a scale or rotation of a watermark orientation component is determined relative to the fiducial, and image portions are classified by their relative relationship (or any deviation from an expected relationship) to the fiducial.
[0171] A few illustrative combinations are shown below. Of course, these combinations are not meant to limit the scope of this aspect of the invention.
Rather, the combinations are provided by way of example only.
[0172] El. A method to detect a copy of a printed document, the printed document comprising a first area and a second area including, respectively, a first digital watermark and a second digital watermark, wherein the first digital watermark includes a first orientation component and the second digital watermark includes a second orientation component, said method comprises:
receiving scan data associated with the printed document;
segmenting the scan data into a plurality of portions;
determining an orientation parameter for at least some of the portions;
identifying from the determined orientation parameters, at least two most prominent orientation parameters;
comparing at least one of: i) a relationship between the two most prominent orientation parameters; ii) the two most prominent orientation parameters to predetermined orientation parameters; and iii) a relationship between the two most prominent orientation parameters and an expected relationship between the two most prominent orientation parameters; and based on the comparing step, determining whether the printed document is an original or is a copy of the printed document.
[0173] E2. The method of El wherein the printed document comprises a financial document.
[0174] E3. The method of El wherein the printed document comprises an identification document, and wherein the first area corresponds with a photographic representation of a bearer of the identification document.
[0175] E4. The method of El, wherein the orientation parameter comprises rotation and scale.
[0176] Fl. A method of determining areas of media that have a likelihood of including digital watermark information, said method comprising:
receiving digital data corresponding to the media;
analyzing a plurality of portions of the digital data to determine an orientation measure for each of the portions, wherein the orientation measure provides an orientation measure relative to a predetermined orientation measure; and to identifying a predetermined number of orientation measures that have at least one of: i) a highest number of portions associated therewith; and ii) a strongest collective watermark strength associated therewith.
[0177] F2. The method of Fl, wherein the media comprises a digital image.
[0178] F3. The method of Fl, wherein the media comprises video.
[0179] F4. The method of Fl, wherein the media comprises a printed document.
[0180] F5. The method of F4, wherein the printed document comprises at least one of an identification document and a financial document.
[0181] F6. The method of Fl, further comprising analyzing portions that correspond to the identified orientation measures to recover the digital watermark information [0182] F7. The method of F6, wherein the identified orientation measures respectively correspond to different digital watermark orientation components.
[0183] F8. The method of claim F6, wherein prior to said analyzing step, said method further comprises manipulating the portions that correspond to the identified orientation measures to compensate for image distortion identified by the orientation measures.
[0184] Gl. A method of identifying areas of image data that are likely to include a digital watermark, the image data corresponding to a document comprising a first area and a second area including, respectively, a first digital watermark and a second digital watermark, wherein the first digital watermark includes a first orientation component and the second digital watermark includes a second orientation component, and wherein the document further comprises a visible fiducial, said method comprises:
segmenting the image data into a plurality of portions;
determining an orientation parameter for at least some of the portions relative to the visible fiducial;
identifying from the determined orientation parameters, at least two prominent orientation parameters, wherein portions of the image data that corresponds to the prominent orientation parameters are identified as areas of image data that are likely to include a digital watermark.
Introduction to Appendix A
[0185] Reference is now made to the accompanying Appendix A. Appendix A
details various additional identification document security features that can be used in combination with digital watermarking, including multiple digital watermarks.
Indeed, use of these additional security features provides a layer-security approach ¨
making it even more difficult for a potential forger to successfully replicate an identification document.
[0186] In addition to providing a layered security feature, we note that many of these security features can cooperate with a digital watermark. For example, a radio frequency-based security feature may include a code for comparison with (or to unlock or decrypt) a code or message carried by a digital watermark, or vice versa.
[0187] As a further example, a fragile or semi-fragile digital watermark can be embedded or laser engraved in a security laminate. If the laminate is tampered with (e.g., manipulated, removed and/or replaced) the fragile watermark will be destroyed or predictably degraded.
In addition, a watermark may be embedded in many of the security features discussed in Appendix A, like fine line printing (background), holograms, optical watermarks, seals and spot colors, to name but a few.
[0188] Still further, one or more digital watermark may be embedded with ultra-violet inks, optically variable inks, specialized inks, infrared inks, etc. In some cases, we anticipate embedding a first digital watermark with conventional ink, while we embed a second digital watermark with one of the specialized (e.g., UV, IR, optically variable, etc.) inks described in Appendix A. The two digital watermarks may cooperate with each other, or may correspond with text (or microprinting) that is providing on an identification document substrate.
[0189] A watermark can also cooperate with biometric information carried by the identification document. In a first implementation, the digital watermark includes a payload having a key to decrypt or decode biometric information stored in a 2-D
barcode or magnetic or RF storage carried on the card. In a second implementation, the digital watermark includes information that is redundant with biometric information carried by another security feature. Comparison of the digital watermark information and the biometric information reveals whether the identification document is authentic.
In a third implementation, the digital watermark includes at least a portion of a biometric template. Once decoded, the biometric template is used to help authenticate the identification document or to convey information.
[0190] Of course additional combinations of these security features are anticipated. In some cases, the combination will include digital watermarking, and in other combinations they will not include digital watermarking.
[0191] For example, possible combinations might be:
[0192] Hl. A security document comprising:
a substrate;
a first graphic carried by the substrate, the first graphic conveying a photographic image to human viewers thereof, the first graphic being steganographically encoded to convey first plural bits of digital data recoverable by computer analysis of said first graphic; and a second graphic carried by the substrate, the second graphic conveying a visual image to human viewers thereof, wherein the second graphic is steganographically encoded to convey second plural bits of digital data recoverable by computer analysis of said second graphic;
and a security feature carried by the substrate.
[0193] H2. The security document of H1, wherein the steganographically encoded first plural bits of digital data and the steganographically encoded second plural bits of digital data cooperate to verify authenticity of the security document.
[0194] H3. The security document of HI, wherein the security feature comprises at least one of a deliberate error, a known flaw, fine line background, ghost image, laser encoded optical image, laser engraving, laser perforation, microprinting, a Moire Pattern, overlapping data, rainbow printing, and security code printing.
[0195] H4. The method of H1, wherein the security feature comprises ultra-violet ink.
[0196] H5. The method of H4, wherein the steganographically encoded first plural bits of digital data and the steganographically encoded second plural bits of digital data cooperate to verify authenticity of the security document, and wherein at least one of the first plural bits of digital data and the second plural bits of digital data cooperate with the security feature to verify the authenticity of the security document.
Conclusion [0197] The foregoing are just exemplary implementations of the present invention. It will be recognized that there are a great number of variations on these basic themes.
The foregoing illustrates but a few applications of the detailed technology.
There are many others.
[0198] The particular combinations of elements and features in the above-detailed embodiments are exemplary only; the interchanging and substitution of these teachings with other teachings in this application and the referenced patent documents are also contemplated.
[0199] The section headings in this document are provided for the reader's convenience, and are not intended to impose limitations on the present invention.
Features disclosed under one section (or embodiment) heading can be readily combined with features disclosed under another section (or embodiment) heading.
[0200] While some of the preferred implementations have been illustrated with respect to identification documents the present invention is not so limited.
Indeed, the inventive methods can be applied to other types of objects as well, including, but not limited to: checks, traveler checks, banknotes, legal documents, printed documents, in-mold designs, printed plastics, product packaging, labels, photographs, etc.
[0201] Also, while some of the implementations discuss embedding first and second digital watermarks, an alternative implementation embeds a single watermark having a first payload component and a second payload component. The first payload component can be embedded, e.g., in a photograph and the second payload component can be embedded, e.g., in a graphic or artwork. The first payload component and the second payload component can be cross-correlated or intertwined to evidence an authentic identification document, as discussed in the above implementations and embodiments.
[0202] Although not belabored herein, artisans will understand that the systems and methods described above can be implemented using a variety of hardware and software systems. Alternatively, dedicated hardware, firmware, or programmable logic circuits, can be employed for such operations. Also, some implementations described in the detailed description suggest that some of the methods or functionality can be carried out using computers or electronic processing circuitry executing software. While this may be a preferred implementation, the present invention is not so limited. Indeed the methods and functionality may be achieved by other means, such as dedicated hardware, firmware, programmable logic circuits, etc.
[0203] In view of the wide variety of embodiments to which the principles and features discussed above can be applied, it should be apparent that the detailed embodiments are illustrative only and should not be taken as limiting the scope of the invention. Rather, we claim as our invention all such modifications as may come within the scope and spirit of the following claims and equivalents thereof.
Appendix A
The following security measures (see security features table below) can be employed in an identification document to counteract malicious and fraudulent attacks and threats. Some of these attacks and threats include: Counterfeiting, Simulation, Alteration, Photo Substitution and Signature Substitution, Imposters, Internal Fraud and Theft, to name a few.
The above listed types of attacks and threats can be described in terms of covert/overt and the degree of inspection required. Based on a layered security architecture approach, each identification document (sometimes hereafter referred to as a DL/ID
card) preferably includes security features that could be used by each of the below three levels of inspection:
First Level - the untrained examiner (e.g., operator through visual observation);
Second Level - the trained examiner (e.g., DMV examiner or law enforcement officer);
Third Level - the forensics examiner (e.g., law enforcement investigator).
To increase the overall security level of the DL /ID card and to protect the cardholder there can be one or more features at each of the three levels of inspection to maximize the protection against the possible threats.
The following "Security Features" chart provides some security features that can be used to help secure identification documents. Of course the descriptions given for the features are not meant to be limiting, but are provided by way of example. The security features can be used to counter different threats as well. And, as we discuss below, we preferably employ a layered approach, meaning that two or more the below security features are used per identification document.
Security Features Table Security Feature Type Threat Inspection Description Countered Level Biometric Covert/ Counterfeit/ Second/ A biometric template of the applicant that is Forensic Simulation, Third stored on the machine-readable feature of the card Photo/ and/or in the central system for future Signature verification and investigation purposes.
Substitution, Alteration, and Imposters Biometric Logon Covert/ Internal Fraud Second/ A biometric template that is time stamped and Forensic Third stored in the audit file of the system.
Core Inclusion Overt/ Counterfeit/ First It is possible to manufacture a plastic document Forensic Simulation with several different layers of core stock. A
colored core material can be added to the card construction to create a colored edge along the card. This technique is currently used in the new INS Work Permit Card as a means of identifying a genuine document.
Deliberate Errors Covert Counterfeit/ Second/ A feature or attribute known only to the or Known Flaws Simulation Third manufacturer or inspection officials.
Directional Overt/ Counterfeit/ Second Directional metamerism refers to the use of colors Metamerism Forensic Simulation that differ in spectral composition but match one another under certain lighting conditions. Using this technique, designs can be created that will show colors that appear to be identical under incandescent light but, under colored light, appear as different colors and patterns.
Digital Covert/ Counterfeit/ Second/ A secure and machine-readable feature that is Watermark Forensic Simulation, Third embedded in the DL/ID and is generally Photo/ imperceptible to the human eye while being Signature readable by a watermark reader.
In some cases, Substitution, the watermark is secure.
Digital watermarking and Alteration fits within the DL/ID design and does not take up any significant real estate on the card, e.g., since it is embedded in card features or background.
Digital watermarking may enable standardized machine based cross-jurisdictional authentication and forensic analysis of the DL/ID without a need for standardized card design.
Embossed Overt Alteration First Embossing is the impressing of raised characters Characters to render a tactile pattern.
The raised characters will also render the card uneven/not flat, thereby making the card more difficult to reprint. It is possible to develop unique embossing characters or logos that would not be included in Security Feature Type Threat Inspection Description Countered Level _ commercially available embossers.
-Fine Line Covert Counterfeit/ First/ Commonly called "guilloche patterns," this Background Simulation Second detailing prevents accurate reproduction by copiers or standard document scanners, especially when used in conjunction with Rainbow Printing.
A fine line background is constructed by using two or more intricately overlapping bands that repeat a lacy, web-like curve pattern on fine unbroken lines.
Ghost Image or Overt Alteration First Digital printing technology has made possible the Ghost Printing printing of a "ghost" image, a half tone reproduction of the original image, which is typically printed in the same area as the personal data. The second image appears as a light background to text data, significantly increasing the difficulty of altering the photo image or the data.
Holograms Overt/ Counterfeit/ First A hologram is a microscopically fine diffraction Forensic Simulation structure by which two or three-dimensional images are generated. The metallized reflective hologram has been a security feature for Visa and MasterCard cards for more than 10 years. The intrinsic security of the hologram results from a moveable image when viewed from different _ angles. It is not receptive to photography, photocopying, or scanning, and it requires highly specialized equipment to replicate designs.
Ink Taggants Covert/ Counterfeit/ Second/ Special inks have been formulated with specific Forensic Simulation Third elements called taggants. These elements react to electromagnetic energy sourced from a remote reader. By using these inks and measuring their reflection, it is possible to identify designated card groupings or types. These taggant-carrying products are known as smart (or intelligent) inks.
Kinegrams Overt/ Counterfeit/ First Kinegrams, like holograms, can be produced on a Forensic Simulation reflective or transparent material. However, unlike holograms, Kinegrams have only two-dimensional effects, and effects are observable under a wider variety of lighting conditions. Also, Kinegrams can incorporate asymmetric optical effects that are different optical variable effects which are viewable as the Kinegram is completely rotated (360 degrees).
Laser-Encoded Overt/ Alteration First/Third The image and text files used to personalize and Optical Image Forensic Photo issue a document is laser-encoded on to optical Substitution WORM media as a visible diffraction pattern and image that is eye-readable under a variety of Counterfeit/ lighting conditions. The personalized laser-Simulation encoded optical image is extremely difficult to Security Feature Type Threat Inspection Description Countered Level simulate as it has a two-dimensional appearance and the encoding registration on to the optical WORM media is at a sub-micron level of accuracy. The laser-encoded optical image cannot be removed from the reflective optical WORM
media nor can it be duplicated or simulated by photocopying, photography or scanning. The laser-encoded optical image can be updated by incorporating new diffraction pattern images or alphanumeric text as the document is updated or processed. Furthermore, covert physical protection can be added by interleaving a copy of the digital file within the laser-encoded optical image. This personalized security feature is currently used in the Permanent Resident Card ("Green Card") issued by the U.S. Immigration and Naturalization Service and the Border Crossing Card issued by the U.S. Department of State.
Laser Engraving Overt/ Alteration First/ Laser engraving has been used in Europe for more Forensic Second than 10 years on high-security plastic cards for printing highly tamper-resistant variable data on a card. Using an intense laser beam, data is burned (or "engraved") into the inner core of the card. The information cannot be mechanically or chemically removed without damaging the surface of the card, thereby providing an extremely effective tamper-resistant barrier. Laser engraving can be performed with alphanumeric characters, digitized images (such as photos or signatures), or bar codes and OCR characters.
Laser Perforation Overt/ Alteration First/ This is the perforation of a document using laser Forensic Second technology. Unlike mechanical punching techniques, the holes made by the laser beam are free from burrs and can easily be confirmed by feeling. The holes created are also conical shape, with the entrance being larger than the exit.
Machine- Covert Counterfeit/ Second/ The card design can incorporate inclusion of Readable Simulation Third many machine-readable technologies such as Technologies magnetic stripe, integrated circuit, 1D or 2D bar-codes, OCR, optical WORM media, machine-readable holograms, etc. Verification of the authenticity of the document, the data, and/or the person presenting the document can be accomplished with a card reader, depending on the technology employed. Common techniques to ensure data integrity include:
Check digits and data encryption (presumably with public key encryption); and, Security Feature Type Threat Inspection Description Countered Level For IC cards, tamper detection and chip disabling;
and digital signatures for all data written to the chip.
Metallic and Overt/ Counterfeit/ First Special iridescent inks fluctuate in brilliance Pearlescent Inks Forensic Simulation, depending upon the angle of illumination and Alteration and viewing. The typical appearance of metallic or Photo/ pearl luster inks cannot be mimicked by color Signature copiers or reproduced by scanning and reprinting.
Substitution Micro Optical Overt/ Counterfeit/ First/ Text, line art, gray scale images and multi-Imaging Forensic Simulation, Second reflectivity images can be engineered into optical Alteration and WORM media at a resolution over 12,000dpi. This Photo/ extremely high resolution is over 4 times higher Signature than current security printing techniques and Substitution therefore extremely difficult to simulate. The micro optical images cannot be removed from the reflective optical WORM media nor can it be duplicated or simulated by photocopying, photography or scanning. Micro optical imaging is mainly made up of visible images but can also incorporate digital data that can be used for covert machine-readable security. Micro optical imaging is currently used in the U.S. Permanent Resident Card, Border Crossing Card and several other commercial applications.
Microprinting Overt/ Counterfeit/ Second Miniature lettering, which is discernible under Forensic Simulation magnifying readers, can be incorporated into the fine line background or can be placed to appear as bold lines. Visa, MasterCard, and American Express include microprint as a standard security feature. Microprint was also added to U. S.
currency in 1990. Accurate reproduction of microprint cannot be accomplished as yet by photocopying or by commercially available color photography or color scanners.
Moire Pattern Covert Counterfeit/ First/ A new pattern formed by the super positioning of Simulation, Second two patterns whose periodicities are not identical.
Alteration, Security designs can be made so that a scanner or and Photo copier will only display part of the pattern, Substitution resulting in a visible effect different from the original document. The original image can be designed so that a copy would reveal indication of reproduction - typically showing the word "VOID" or "COPY". This process is also referred to as aliasing.
Opacity Mark Overt Counterfeit/ First The opacity mark, which is similar to a Simulation watermark, is a plastic that contains a unique translucent opacity mark. It is similar in principle Security Feature Type Threat Inspection Description Countered Level and effect to a watermark found in paper documents and enjoys a high level of familiarity as a security feature.
Optical Variable Overt Counterfeit/ First/ Optically Variable Device (OVD) is a general term Device Simulation, Second describing a security feature which changes Photo appearance in some way when the angle of Substitution, illumination or observation is changed. OVDs and Alteration derive their significance for valuable documents and goods from the impossibility of copying them with usual reproduction techniques like color scanners and copiers. OVDs are often distinguished by being identified as either iridescent or non-iridescent.
Optical Overt Counterfeit/ First/ Fine line images can be engineered into optical Watermark Simulation Second WORM media at a resolution over 12,000dpi. The and Alteration optical watermark is then overwritten with a laser-encoded optical image, interlocking in sub-micron register, and a preforrnatted document security feature with a laser encoded personalization security feature. This extremely high resolution is over 4 times higher than current security printing techniques and therefore extremely difficult to simulate. The optical watermark cannot be removed from the reflective optical WORM media nor can it be duplicated or simulated by photocopying, photography or scanning. Attempting to tamper or alter the optical watermark destroys the laser-encoded optical image. The optical watermark is currently used in the U.S. Permanent Resident Card and Border Crossing Card.
Optically Overt Counterfeit/ First Optically variable inks (OW) can be incorporated Variable Inks Simulation into designs to create a striking color shift (for example, green to purple, gold to green, etc.) depending on the angle of light used in viewing the card. This material consists of a transparent colorless ink containing microscopic, advanced multi-layer interference structures. OVI is precious, and production is available to secure printers only. Since the availability of these inks is highly restricted, true counterfeiting is unlikely.
Overlapping Overt Alteration and First Variable data, such as a digitized signature or Data Photo/ text, can be overlapped with another field, such as Signature a photo image. This technique makes it necessary Substitution to alter both fields if either one of them is changed, thereby increasing the tamper resistance of the card by making_it more difficult to alter.
Radio Frequency Covert Counterfeit/ Second/ Use of radio frequency waves to activate and Security Feature Type Threat Inspection Description Countered Level Technology Simulation, Third retrieve information from another source.
Alteration, Photo/
Signature Substitution Rainbow Overt Counterfeit/ First Sometimes called iris printing, involves a very Printing Simulation, subtle shift in color across a document. Well-Alteration designed patterns cannot be accurately reproduced on color copiers or through the use of document scanners. Widely perceived in Europe and Asia as an element of a secure document design, it is commonly used in conjunction with a fine line or medallion pattern in the background of the document.
Redundant Data Overt Alteration First Data can be displayed in more that one location on the ID, thereby raising the resistance to alteration. A simple visual inspection is required to determine if all data fields match. Redundant data can also be displayed in differing colors or fonts.
Retroreflective Overt Counterfeit/ Second Optical constructions that reflect light such that Devices Simulation, covert logos become visible over the entire Alteration and document, and/or overt logos become more Photo/ visible and reflective, when the document is Signature viewed using a focused light source.
Substitution Seal / Signature Overt Photo/ First A type of unique identification that overlaps the over Photo / Signature photo and text area. It can be a specific Information Substitution equipment number, state seal, coat of arms, flag, etc. The significance of this is to deter substituting the photo and/or personal information.
Security Covert Alteration and Second The card periphery on an optical memory card Bonding Counterfeit/ can incorporate a security bonding material with Simulation known characteristics to bond all layers together.
Tampering with the card periphery in an attempt to access internal structures damages the known characteristics within the security bonding. This creates a tamper evident feature.
Security Code Covert Counterfeit/ Second/ It is possible for high-resolution color printing Simulation, Third systems to print a security code within the body of Alteration, the color printed photograph.
For example, a and Theft of security code can be printed in a non-proportional Components font that can imbed characters on the edge or the bottom of the printed picture. The text can be printed on the image in colors that are complementary to the image or in black.
Security Overt Alteration and First/ Transparent layers or films with an integrated Laminate Counterfeit/ Second security feature can be applied to a document Simulation with an adhesive or fused by heat. Available in a Security Feature Type Threat Inspection Description Countered Level number of forms security laminates are designed to protect a document from alteration and provide tamper evidence.
Security Thread Overt Counterfeit/ First/ First seen in U.S.
banknotes the thread is visible Simulation Second by viewing in reflected or transmitted light and and Alteration can have text (positive or reverse) or other features on/in the thread. Security threads can be metal or plastic, transparent or opaque, colored or colorless. With special metallized film, demetallized text is invisible in reflected light and therefore cannot be copied reprographically.
When viewed in transmitted light, however, the opaque aluminum letters are clearly visible.
Specialized Inks Covert/ Counterfeit/ Second/ Special inks have been formulated with specific Forensic Simulation Third elements called taggants. A
remote reader or viewer can detect these elements. By using these inks and measuring their presence, it is possible to identify designated card groupings or types.
These taggant-carrying products are known as smart (or intelligent) inks.
Spot Color Covert/ Counterfeit/ Third Special artwork combined with pantone inks can Forensic Simulation, be used to pre-print images on card core stock Photo/ that cannot be scanned and then printed using Signature cyan (C), magenta (M), yellow (Y) and black (K) Substitution, technologies without a trained observer using a Alteration, simple magnifying device being able to discern and Imposters the difference in the artwork.
Typical laser and inkjet printers use a series of different colored dots that are combined to print the image; the spot color image uses dots of a single color.
Thin-Film Overt Counterfeit/ Second Multiple-layer structures that produce color Interference Simulation effects by interference.
Filters Transparent Overt/ Alteration and First/ It is possible to incorporate holographic effects in Holograms Forensic Counterfeit/ Second a clear, transparent topcoat that can be applied Simulation over variable printing.
Through careful design and physical registration, the clear holographic topcoat can serve as a deterrent to alteration in addition to its counterfeit protection features. If an attempt is made to remove or alter the topcoat, tampering will be detectable without the need of special equipment. Because the transparent hologram design reflects light at differing angles, accurate reproduction with a copier or scanner is cannot be accomplished.
Ultraviolet (UV) Covert/ Counterfeit/ Second Ultraviolet ink, which can be applied either Printing Forensic Simulation, through offset or silkscreen techniques, has long Security Feature Type Threat Inspection Description Countered Level Photo/ been accepted as a security feature for plastic Signature cards. This invisible printing can be produced Substitution, with the availability of a color shift when viewed and Alteration under long-wave UV light sources. UV radiation is not visible to the human eye, but becomes visible when irradiated with a UV light. Custom UV fluorescing colors can be formulated that are not normally available commercially, thereby increasing resistance to counterfeiting.
Void Pattern Covert Counterfeit/ Second A security device consisting of a period structure Simulation as an overt but not visible feature. When copied on a machine with a different periodicity, the resulting moire pattern displays the word VOID
or some other message.
Specific Security Features We prefer a layered security approach. Most preferred is when two or more security features are incorporated into a DL/ID card or a card issuing system that address each of the threat types identified above (e.g., counterfeit/simulation, photo/signature substitution, alteration, imposters, internal fraud, and theft).
Full Color Ultraviolet Ink and Digital Watermarks are preferred as minimum-security features. This would provide both human and machine-readable features for authentication of DL/ID cards. In addition, the cost, expertise, equipment, and materials that it would take to reproduce either of these features make the replication process cost prohibitive for those who would wish to counterfeit these features.
Data That Identifies Easily Defeated Security Measures We are not aware of any data or research that identifies commonly and/or easily defeated security measures and the methods used by counterfeiters to defeat them.
However, our current experience indicates that it is nearly, if not impossible to defeat the current generation of secure DL/ID documents produced using a layered security architecture approach and feature set. As a result, the more sophisticated counterfeiters focus on obtaining, from an illegal means, the equipment and materials necessary to produce the documents.
Other experience has indicated that the ability of the counterfeiter to defeat the security measures in a DL/ID card is related to the sophistication of the DL/ID card.
DL/ID cards with few security features are far easier to counterfeit than the current generation of DL/ID cards. There have been reported incidences of counterfeiting of the older generation of DL/ID cards that are still acceptable in a given state since that particular generation of card had few, if any, security measures. This experience points to the value of a sophisticated state-of-the-art DL/ID card with a layered security architecture. It also suggests that valid card life needs to be of a shorter duration rather than a longer duration to ensure that the latest security technologies are in force and that the older technologies are retired from service.
We have observed that the security features designed in today's generation of DL/ID
cards cannot be counterfeited without the systems used for their legal and authorized production. The equipment used by counterfeiters cannot produce exact copies of properly designed DL/ID cards. The counterfeited documents are most frequently used to obtain age-controlled products and services where the point-of-sale is not equipped to perform sophisticated identification or authentication of the cardholder or validate the authenticity of the DL/ID card (e.g., the counterfeited document is "good enough" to gain admittance to a "21 or over" club).
Minimum Security Features Today a preferred number of security features specified for a DL/ID card is one overt security feature and one covert security feature. We prefer a layered security approach such that each identification card implements at least a minimum number of security features for each level of inspection.
At each inspection level, each document issuing agency preferably can have an option to select from a range of security features to implement in their respective DL/ID card programs in a manner that is consistent with their card design and issuance philosophy.
Common/Interoperable Security Feature Digital watermark technology can provide a common and interoperable security feature that can complement the use of existing machine-readable features and emerging security features such as biometrics. Digital watermark technology can provide a common/standard authentication mechanism across jurisdictions regardless of the DL/ID design and other data carrying features.
Most preferably is a minimum of one and probably at least two interoperable security features used to both authenticate and secure the DL/ID card(s). A possible combination of a digital watermark and a 2D barcode feature could be paired up for multiple levels of layered security and end user interoperable DL/ID
verification.
Aid in Forensic Document Examination We suggest that if a minimum number of forensic security features are specified in the card design specification together with a layered security document architecture, forensic documentation examination will become easier to perform and more conclusive in the results. For example, the following features could be included in a layered security architecture that greatly enhance forensic document examination.
Embedded Digital Watermarking Use of Infrared Ink Use of Full Color Ultraviolet Inks Card Body Material Specifications We prefer a Teslin-enriched or a polycarbonate material be specified for the card body material (or substrate) so that layered security features can be implemented on the DL/ID document.
The card body material can be an enhancement of the DL/ID document as it may interact with the layered security architecture design to provide a complete and secure solution. The card body material may support the security design features, with respect to the printing of the features and the inks used to implement the security features, and interact with the front and back laminates to secure the features. The card body material may also be selected so that any attempt to alter the card invalidates the card rendering it useless.
A Teslin-enriched or polycarbonate card provides a suitable material to enable the layering of security features on the card.
Other Security Features in Card Body Material There are several other security features that could be incorporated into card body materials. These features include: the serialization of the card stock to provide inventory and audit control of the card stock material; the use of forensics to support the identification and authentication of the user; and, the use of ultraviolet (UV) and infrared (IR) inks to prevent fraudulent document duplication.
The use of "Spot" colors incorporated with micro printing can also be used.
"Spot"
colors are virtually impossible to scan and duplicate. We note that a digital watermark can be embedded into a spot color.
Factors in Printing DL/ID Cards = There are often two dimensions to address related to the printing of DL
/ID cards; the location of the print function and the security features printed on the card.
Where a card is printed will affect the security of the print function.
Centrally produced cards benefit from security inherent in the process, including: a single secure printing facility; the ability of the vendor to conduct background investigations and monitor its employees; and, the controlled manufacture and delivery of the cards.
Notwithstanding the method of production ¨ centralized or decentralized ¨ the operator of the capture station should also be controlled throughout the image capture and card printing process.
We sometimes recommend the use of the "Bio Log On" feature to ensure printing station operator authentication and authorization. (A bio-log on features ties an operator to the printing process through an identifier or unique biometric characteristic.). The use of this feature creates an audit trail between the printing station operator and the DL /ID cards printed. In addition the use of a biometric log on feature renders the workstation inoperable to unauthorized users.
Once a jurisdiction has taken actions to control the printing function it can turn to a myriad of printed security features to protect the card from various security threats.
We prefer that Digital Watermarking and, e.g., Full Color Ultraviolet Printing be specified printing features. These extremely complex features protect cards from virtually every security threat, save internal fraud and imposters. Our experience shows that because of the expense, knowledge, equipment, and ability required, reproducing these features is beyond the realm of today's counterfeiters and regeneration artists.
Additionally, we recommend that the following printing features be considered to be included in a minimum feature set for all DL /ID cards.
Deliberate Errors or Known Flaws Fine Line Background Ghost Image Laser Encoded Optical Image Laser Engraving/laser Perforation Microprinting Moire Pattern Overlapping Data Rainbow Printing Security Code Printing Specialized Inks DUD Cards Protected Against Copying It is our assumption that cards are primarily copied for the purpose of subsequent fraudulent and unlawful regeneration. DL /ID cards embedded with Digital Watermarks (DWM) can be designed to be invalid after unlawful duplication and regeneration. Our preferred implementation is that each DL /ID document be embedded with two or more digital watermarks. The two or more digital watermarks working in tandem can provide crosschecking data as well as data alteration detection. Additionally, a DWM may become part of the DL/ID document, e.g., if it is embedded in a feature like an image and, as a result, it would become tied to the document making it highly secure, resistant to counterfeiting and does not take up any real estate on the document. The DWM is generally imperceptible to the human eye, but can be detected using an authorized, audience-specific, secure reader application.
One implementation uses two or more digital watermarks to thwart common driver license document counterfeiting and alteration attacks across multiple user environments. Other implementations use one watermark. Other implementation uses three or more digital watermarks.
Any attempt to create a good simulation of the DL/ID card from a legitimately issued card will be detected using a secure reader device/application. This detection will be made because the modification of data on the card after copying the card image will result in failure to pass the crosschecking of the two digital watermarks' content during the authentication process. In addition, the forensic application capability of the digital watermark can provide the ability to trace the simulated card to its origin.
Other non-machine readable security features that will protect the DL/ID cards from duplication include the use of UV and IR inks, micro printing and the use of "Spot"
coloring. Because of their (color) chemical composition, "Spot" colors are virtually impossible to duplicate or scan.
Personalization Process Secured The following actions identify some of the ways that the personalization process for a DL/ID card can be secured.
Card material, ribbon and lamina features should not be commercially available.
Standardize on Landscape (Over 21) and Portrait (Under 21) DL/ID card types.
Card material could have a unique covert inventory control number that a camera/sensor could read and match to an inventory control list for that facility from the main system. Only if a match is found will the printer print a DL/ID card.
Layered overt and covert for casual, trained, and forensic level security in the card material, printing process, and lamina should be used.
Card Personalization software could have the Graphic Background images loaded from the central site each day and not maintained on a local disk.
All or part of the applicant data could be encrypted and/or could be stored on a removable storage vault device.
Capture Software could be disabled by having key components of the application(s) stored at the central site or on removable storage vault devices.
Biometric logons and final biometric authorization could be used to finalize a transaction and keep a biometric audit of who did what and when they did it.
The following list identifies examples of printing / manufacturing processes that can be used to produce the DL/ID card (from card blank to card personalization).
Standardize on Landscape (Over 21) and Portrait (Under 21) DL/ID card types.
Card materials could have a unique covert inventory control number that a camera/sensor in the printer could read and match the inventory control number to an inventory control list for that facility from the main system.
Only if a match is found will the printer print a DL/ID card.
Layered overt and covert security features for casual, trained, and forensic level security in the card material, printing process, and lamina could be used.
Method for Assessing Greatest Security Risks A jurisdiction could obtain the services of a Materials Science organization such as Digimarc ID Systems' Materials Science organization that could perform an assessment of the security risks associated with their DL/ID documents. A
Materials Science technical staff has the training, experience, and relevant expertise to analyze the DL/ID documents and assess the risks associated with the document, its method of production, the materials used to construct the document, and the features used to secure the document. Based on the analysis, a risk assessment can be prepared together with recommendations on ways to increase the security level of the document and reduce security risks.
Secure Card against Alteration and Counterfeit A layered security architecture and associated security features provides a method that to deter alteration or counterfeiting. In addition to printed security features, lamination security features, the use of Digital Watermarks, and biometrics, other physical methods of securing the DL/ID can include the use of multiple physical design templates for specific user groups. For example, Age Group Card Layout templates can be created for DLs issued to operators under 21 and 21 and over.
Typically, a vertical or portrait layout is used for the under 21 DL and a horizontal or landscape layout is used for the 21 and over DL. Similarly, templates can be designed specially for a child ID.
Layered Security We suggest a layered security architecture, as discussed throughout this document, for DL/ID card physical security. We suggest that a layered security architecture that is built on overt features, covert features, and forensic features will lead to DL/ID
documents with the most robust physical security features supported by current technology.
Business Processes We suggest that there are business processes in card issuance that can impact the overall physical security of DL/ID cards. The following list identifies some of the processes that can be reviewed and assessed to determine the impact of the physical security of the DL/ID card.
Type of Card Issuance (Central Issue vs. Decentralized Issue) - The physical security of central issuance is significantly greater than the physical security of decentralized issue due to the reduced number of facilities to secure. A highly secure single facility allows tighter control of employees, equipment, consumable supplies (e.g., card stock, laminates, ink, etc.) and allows for easier surveillance than multiple sites that would be included in decentralized issue environment.
Operator Background Checks - In addition to the production of a secure DL/ID document it is equally important to protect against the security threat presented by system operators. All persons associated with the production and issuance of DL/ID documents preferably undergo a complete background check by a law enforcement agency such as the Federal Bureau of Investigation and be subject to periodic review and update. Additionally, the use of a "Bio Log On" security feature to ensure that personnel associated with the production and issuance of DL/ID
documents are authenticated and authorized to perform their job function can be used.
Customer Processing ¨ As part of a layered security architecture the use of Biometrics to increase the physical security of the DL/ID card issuance process is preferred. A combination of security features associated with the printing of DL/ID documents and biometrics (e.g., facial recognition systems and fingerprint matching systems) can significantly reduce the probability of fraud in the DL/ID issuance process.
Reasons for Centralized Issuance We suggest that central issuance is the most secure approach to document issuance.
The following list identifies some of the reasons to consider centralized issuance.
Easier and more cost effective to maintain as well as deploy system enhancements and take advantage of new technology with centralized issuance Quality, uniformity, and processing of DL/ID documents are easier to control with centralized issuance Multiple levels of collusion required to defraud centralized issuance More secure protection against equipment and/or unique materials theft Processing speed is greater with centralized issuance Easier to train operators with centralized issuance Advantages to Decentralized or Hybrid Issuance Systems Nevertheless, there are some advantages for jurisdictions to continue decentralized or hybrid issuance. Decentralized issue enhances security because card delivery is controlled. No cards are lost, returned as undeliverable, or stolen from the mail.
Hybrid systems allow jurisdictions to concentrate security investigations on specific target groups, which allows for increased return on their security investment.
Organizationally, these methods provide a high level of customer service. The applicant is presented the document on demand and is equipped with proper identification immediately. The flexibility of these methods easily allows for emergency and special issuance (employee access cards, Child ID cards, travelers, etc).
In addition, decentralized issuance complements the information technology infrastructure that provides the ability to qualify applicants on-the-spot.
Budgets can safely be constructed for decentralized issuance without the need to account for unscheduled postage hikes. Finally, these methods accommodate jurisdictions that historically use third party providers to issue the cards.
Jurisdictions should consider the following practices to secure decentralized systems of issuance.
Operator bio-logon Serialization of card stock Secure storage and inventory of consumables Graphic images stored off-site Purge hard drives daily No batch updates of work Encryption of all data Security Recommendations That Effect Maximum Card Lifecycles We suggest that there is a relationship between DL/ID document security features and document lifecycles. An important security consideration is the physical change that occurs over time to the cardholder that can effect the authentication of the card.
For example, the physical appearance of the cardholder may change significantly over extended periods of time due to the natural aging process making a DL/ID image obsolete. There is also some evidence that biometrics are impacted by time.
The current recommendation is that finger images and facial images be revised every five years.
Another consideration is based on the rate of change of technology. As technology is constantly changing, these changes impact the security features implemented in a DL/ID document. As technology improves and enables the deployment of more sophisticated features, it also may become easier to defeat a security feature based on older technology. Longer document life cycles may actually provide an unintended opportunity for counterfeiters or fraudulent production of DL/ID documents based on older security features. Shorter document life cycles ensure that the most current security technologies are deployed and that the older DL/ID documents are removed from circulation.
Methods for Conducting Risk Assessment of Cards The following list identifies resources for Risk Assessment.
Digimarc ID Systems Card Material Science and Process Analysis Groups IAFCI - International Association of Financial Crimes Investigators Secret Service - Identity and Credit Fraud Postal Inspectors Bank Investigators International Association of Chiefs of Police
Claims (20)
1. A method comprising:
receiving data corresponding to a detection trigger of an identification document; and determining whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, authenticating the identification document through the digital watermarking authentication process, wherein the digital watermark authentication process utilizes at least first and second digital watermarks and includes analyzing optical scan data that corresponds to the identification document to attempt to obtain information conveyed by the first and second digital watermarks;
if the information is obtained, cross-correlating at least some of the information conveyed by the first digital watermark with at least some of the information conveyed by the second digital watermark, and providing a signal corresponding to a result of the cross-correlation of the watermark information;
if the information is not obtained providing a signal representing that the identification document is considered suspect;
if the received data indicates an expected absence of digital watermarks, authenticating the identification document through the alternative authentication process, wherein the alternative authentication process utilizes bearer or document specific information and includes attempting to obtain the specific information from at least two sources related to the identification document;
if the specific information is obtained, cross-correlating the specific information, and providing a signal corresponding to a result of the cross-correlation of the specific information; and if the specific information is not obtained, providing a signal representing that the identification document is suspect.
receiving data corresponding to a detection trigger of an identification document; and determining whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, authenticating the identification document through the digital watermarking authentication process, wherein the digital watermark authentication process utilizes at least first and second digital watermarks and includes analyzing optical scan data that corresponds to the identification document to attempt to obtain information conveyed by the first and second digital watermarks;
if the information is obtained, cross-correlating at least some of the information conveyed by the first digital watermark with at least some of the information conveyed by the second digital watermark, and providing a signal corresponding to a result of the cross-correlation of the watermark information;
if the information is not obtained providing a signal representing that the identification document is considered suspect;
if the received data indicates an expected absence of digital watermarks, authenticating the identification document through the alternative authentication process, wherein the alternative authentication process utilizes bearer or document specific information and includes attempting to obtain the specific information from at least two sources related to the identification document;
if the specific information is obtained, cross-correlating the specific information, and providing a signal corresponding to a result of the cross-correlation of the specific information; and if the specific information is not obtained, providing a signal representing that the identification document is suspect.
2. The method of claim 1, wherein the detection trigger comprises a document issue date.
3. The method of claim 1, wherein the detection trigger comprises a document expiration date.
4. The method of claim 1, wherein the identification document comprises a magnetic stripe, and wherein the detection trigger is stored by the magnetic stripe.
5. The method of claim 1, wherein the identification document comprises electronic circuitry, and wherein the detection trigger is stored in the electronic circuitry.
6. A method comprising:
receiving data carried by an identification document corresponding to a detection trigger; and determining whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, attempting to authenticate the identification document by analyzing digital watermarking carried by the identification document; and if the received data indicates an expected absence of digital watermarks, attempting to authenticate the identification document through an alternative process.
receiving data carried by an identification document corresponding to a detection trigger; and determining whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, attempting to authenticate the identification document by analyzing digital watermarking carried by the identification document; and if the received data indicates an expected absence of digital watermarks, attempting to authenticate the identification document through an alternative process.
7. The method of claim 6, wherein the alternative process involves analysis of at least one of data carried by a barcode, data obtained through optical character recognition (OCR), or human inspection of the identification document.
8. The method of claim 6, wherein the detection trigger corresponds to at least one of a document issue date or a document expiration date.
9. The method of claim 6, wherein the identification document comprises electronic circuitry, and wherein the detection trigger is stored in the electronic circuitry.
10. The method of claim 6, wherein attempting to authenticate the identification document by analyzing digital watermarking carried by the identification document utilizes a programmed electronic processor.
11. The method of claim 6, wherein attempting to authenticate the identification document through an alternative process utilizes a programmed electronic processor.
12. The method of claim 6, wherein the identification document comprises text and graphics thereon, and in which the detection trigger comprises a predetermined spatial distance between the graphics and the text.
13. An apparatus comprising:
a memory for storing data associated with an identification document, the data corresponding to a detection trigger; and an electronic processor configured to:
determine whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the data indicates an expected presence of digital watermarks, attempting to authenticate the identification document by analyzing digital watermarking carried by the identification document; and if the data indicates an expected absence of digital watermarks, attempting to authenticate the identification document through an alternative process.
a memory for storing data associated with an identification document, the data corresponding to a detection trigger; and an electronic processor configured to:
determine whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the data indicates an expected presence of digital watermarks, attempting to authenticate the identification document by analyzing digital watermarking carried by the identification document; and if the data indicates an expected absence of digital watermarks, attempting to authenticate the identification document through an alternative process.
14. The apparatus of claim 13, wherein the alternative process comprises analysis of at least one of data carried by a barcode, data obtained through optical character recognition (OCR), human inspection of the identification document.
15. The apparatus of claim 13, wherein the detection trigger corresponds to at least one of a document issue date or a document expiration date.
16. The apparatus of claim 13, wherein the identification document comprises electronic circuitry, and the detection trigger is obtained from the electronic circuitry.
17. The apparatus of claim 13, wherein the identification document comprises text and graphics thereon, and in which the detection trigger comprises a predetermined spatial distance between the graphics and the text.
18. A non-transitory computer-readable storage medium having instructions stored thereon that, if executed by a computing device, cause the computing device to perform operations comprising:
receiving data carried by an identification document corresponding to a detection trigger; and determining whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, attempting to authenticate the identification document by analyzing digital watermarking carried by the identification document; and if the received data indicates an expected absence of digital watermarks, attempting to authenticate the identification document through an alternative process.
receiving data carried by an identification document corresponding to a detection trigger; and determining whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, attempting to authenticate the identification document by analyzing digital watermarking carried by the identification document; and if the received data indicates an expected absence of digital watermarks, attempting to authenticate the identification document through an alternative process.
19. An apparatus comprising:
a processor configured to:
receive data corresponding to a detection trigger of an identification document; and determine whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, authenticating the identification document through the digital watermarking authentication process, wherein the digital watermark authentication process utilizes at least first and second digital watermarks and includes analyzing optical scan data that corresponds to the identification document to attempt to obtain information conveyed by the first and second digital watermarks;
if the information is obtained, cross-correlating at least some of the information conveyed by the first digital watermark with at least some of the information conveyed by the second digital watermark, and providing a signal corresponding to a result of the cross-correlation of the watermark information;
if the information is not obtained, providing a signal representing that the identification document is considered suspect;
if the received data indicates an expected absence of digital watermarks, authenticating the identification document through the alternative authentication process, wherein the alternative authentication process utilizes bearer or document specific information and includes attempting to obtain the specific information from at least two sources related to the identification document;
if the specific information is obtained, cross-correlating the specific information, and providing a signal corresponding to a result of the cross-correlation of the specific information; and if the specific information is not obtained, providing a signal representing that the identification document is suspect.
a processor configured to:
receive data corresponding to a detection trigger of an identification document; and determine whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, authenticating the identification document through the digital watermarking authentication process, wherein the digital watermark authentication process utilizes at least first and second digital watermarks and includes analyzing optical scan data that corresponds to the identification document to attempt to obtain information conveyed by the first and second digital watermarks;
if the information is obtained, cross-correlating at least some of the information conveyed by the first digital watermark with at least some of the information conveyed by the second digital watermark, and providing a signal corresponding to a result of the cross-correlation of the watermark information;
if the information is not obtained, providing a signal representing that the identification document is considered suspect;
if the received data indicates an expected absence of digital watermarks, authenticating the identification document through the alternative authentication process, wherein the alternative authentication process utilizes bearer or document specific information and includes attempting to obtain the specific information from at least two sources related to the identification document;
if the specific information is obtained, cross-correlating the specific information, and providing a signal corresponding to a result of the cross-correlation of the specific information; and if the specific information is not obtained, providing a signal representing that the identification document is suspect.
20. A non-transitory computer-readable storage medium having instructions stored thereon that, if executed by a computing device, cause the computing device to perform operations comprising:
receiving data corresponding to a detection trigger of an identification document; and determining whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, authenticating the identification document through the digital watermarking authentication process, wherein the digital watermark authentication process utilizes at least first and second if the received data indicates an expected presence of digital watermarks, authenticating the identification document through the digital watermarking authentication process, wherein the digital watermark authentication process utilizes at least first and second digital watermarks and includes analyzing optical scan data that corresponds to the identification document to attempt to obtain information conveyed by the first and second digital watermarks;
if the information is obtained, cross-correlating at least some of the information conveyed by the first digital watermark with at least some of the information conveyed by the second digital watermark, and providing a signal corresponding to a result of the cross-correlation of the watermark information;
if the information is not obtained, providing a signal representing that the identification document is considered suspect;
if the received data indicates an expected absence of digital watermarks, authenticating the identification document through the alternative authentication process, wherein the alternative authentication process utilizes bearer or document specific information and includes attempting to obtain the specific information from at least two sources related to the identification document;
if the specific information is obtained, cross-correlating the specific information, and providing a signal corresponding to a result of the cross-correlation of the specific information; and if the specific information is not obtained, providing a signal representing that the identification document is suspect.
receiving data corresponding to a detection trigger of an identification document; and determining whether to authenticate the identification document through digital watermarking or through an alternative process, including:
if the received data indicates an expected presence of digital watermarks, authenticating the identification document through the digital watermarking authentication process, wherein the digital watermark authentication process utilizes at least first and second if the received data indicates an expected presence of digital watermarks, authenticating the identification document through the digital watermarking authentication process, wherein the digital watermark authentication process utilizes at least first and second digital watermarks and includes analyzing optical scan data that corresponds to the identification document to attempt to obtain information conveyed by the first and second digital watermarks;
if the information is obtained, cross-correlating at least some of the information conveyed by the first digital watermark with at least some of the information conveyed by the second digital watermark, and providing a signal corresponding to a result of the cross-correlation of the watermark information;
if the information is not obtained, providing a signal representing that the identification document is considered suspect;
if the received data indicates an expected absence of digital watermarks, authenticating the identification document through the alternative authentication process, wherein the alternative authentication process utilizes bearer or document specific information and includes attempting to obtain the specific information from at least two sources related to the identification document;
if the specific information is obtained, cross-correlating the specific information, and providing a signal corresponding to a result of the cross-correlation of the specific information; and if the specific information is not obtained, providing a signal representing that the identification document is suspect.
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Families Citing this family (322)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6449377B1 (en) * | 1995-05-08 | 2002-09-10 | Digimarc Corporation | Methods and systems for watermark processing of line art images |
US6345104B1 (en) | 1994-03-17 | 2002-02-05 | Digimarc Corporation | Digital watermarks and methods for security documents |
US5768426A (en) | 1993-11-18 | 1998-06-16 | Digimarc Corporation | Graphics processing system employing embedded code signals |
US5748763A (en) | 1993-11-18 | 1998-05-05 | Digimarc Corporation | Image steganography system featuring perceptually adaptive and globally scalable signal embedding |
US8505108B2 (en) | 1993-11-18 | 2013-08-06 | Digimarc Corporation | Authentication using a digital watermark |
US6944298B1 (en) | 1993-11-18 | 2005-09-13 | Digimare Corporation | Steganographic encoding and decoding of auxiliary codes in media signals |
US7676059B2 (en) | 1994-10-21 | 2010-03-09 | Digimarc Corporation | Video steganography or encoding |
US6983051B1 (en) | 1993-11-18 | 2006-01-03 | Digimarc Corporation | Methods for audio watermarking and decoding |
US8144368B2 (en) | 1998-01-20 | 2012-03-27 | Digimarc Coporation | Automated methods for distinguishing copies from original printed objects |
US6869023B2 (en) * | 2002-02-12 | 2005-03-22 | Digimarc Corporation | Linking documents through digital watermarking |
US7724919B2 (en) | 1994-10-21 | 2010-05-25 | Digimarc Corporation | Methods and systems for steganographic processing |
US6560349B1 (en) | 1994-10-21 | 2003-05-06 | Digimarc Corporation | Audio monitoring using steganographic information |
US7362775B1 (en) | 1996-07-02 | 2008-04-22 | Wistaria Trading, Inc. | Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management |
US6728390B2 (en) | 1995-05-08 | 2004-04-27 | Digimarc Corporation | Methods and systems using multiple watermarks |
US20030133592A1 (en) | 1996-05-07 | 2003-07-17 | Rhoads Geoffrey B. | Content objects with computer instructions steganographically encoded therein, and associated methods |
US6760463B2 (en) | 1995-05-08 | 2004-07-06 | Digimarc Corporation | Watermarking methods and media |
US7724920B2 (en) | 1995-05-08 | 2010-05-25 | Digimarc Corporation | Digital authentication with analog documents |
US7805500B2 (en) | 1995-05-08 | 2010-09-28 | Digimarc Corporation | Network linking methods and apparatus |
US5613004A (en) | 1995-06-07 | 1997-03-18 | The Dice Company | Steganographic method and device |
US7562392B1 (en) | 1999-05-19 | 2009-07-14 | Digimarc Corporation | Methods of interacting with audio and ambient music |
US9630443B2 (en) | 1995-07-27 | 2017-04-25 | Digimarc Corporation | Printer driver separately applying watermark and information |
US6205249B1 (en) | 1998-04-02 | 2001-03-20 | Scott A. Moskowitz | Multiple transform utilization and applications for secure digital watermarking |
US7664263B2 (en) | 1998-03-24 | 2010-02-16 | Moskowitz Scott A | Method for combining transfer functions with predetermined key creation |
US8180844B1 (en) | 2000-03-18 | 2012-05-15 | Digimarc Corporation | System for linking from objects to remote resources |
US5889868A (en) | 1996-07-02 | 1999-03-30 | The Dice Company | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7159116B2 (en) | 1999-12-07 | 2007-01-02 | Blue Spike, Inc. | Systems, methods and devices for trusted transactions |
US7457962B2 (en) | 1996-07-02 | 2008-11-25 | Wistaria Trading, Inc | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7177429B2 (en) | 2000-12-07 | 2007-02-13 | Blue Spike, Inc. | System and methods for permitting open access to data objects and for securing data within the data objects |
US7346472B1 (en) | 2000-09-07 | 2008-03-18 | Blue Spike, Inc. | Method and device for monitoring and analyzing signals |
US7095874B2 (en) | 1996-07-02 | 2006-08-22 | Wistaria Trading, Inc. | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7730317B2 (en) | 1996-12-20 | 2010-06-01 | Wistaria Trading, Inc. | Linear predictive coding implementation of digital watermarks |
US7602940B2 (en) | 1998-04-16 | 2009-10-13 | Digimarc Corporation | Steganographic data hiding using a device clock |
US7162052B2 (en) | 1998-04-16 | 2007-01-09 | Digimarc Corporation | Steganographically encoding specular surfaces |
US7372976B2 (en) | 1998-04-16 | 2008-05-13 | Digimarc Corporation | Content indexing and searching using content identifiers and associated metadata |
US7756892B2 (en) | 2000-05-02 | 2010-07-13 | Digimarc Corporation | Using embedded data with file sharing |
US7313253B2 (en) | 1998-09-11 | 2007-12-25 | Digimarc Corporation | Methods and tangible objects employing machine readable data in photo-reactive materials |
US8290202B2 (en) | 1998-11-03 | 2012-10-16 | Digimarc Corporation | Methods utilizing steganography |
EP1131769B1 (en) * | 1998-11-19 | 2005-02-16 | Digimarc Corporation | Printing and validation of self validating security documents |
US6449645B1 (en) * | 1999-01-19 | 2002-09-10 | Kenneth L. Nash | System for monitoring the association of digitized information having identification indicia with more than one of uniquely identified computers in a network for illegal use detection |
US7664264B2 (en) | 1999-03-24 | 2010-02-16 | Blue Spike, Inc. | Utilizing data reduction in steganographic and cryptographic systems |
US7206820B1 (en) | 2000-03-18 | 2007-04-17 | Digimarc Corporation | System for linking from object to remote resource |
US8447067B2 (en) | 1999-05-19 | 2013-05-21 | Digimarc Corporation | Location-based arrangements employing mobile devices |
US7770016B2 (en) | 1999-07-29 | 2010-08-03 | Intertrust Technologies Corporation | Systems and methods for watermarking software and other media |
WO2001018628A2 (en) | 1999-08-04 | 2001-03-15 | Blue Spike, Inc. | A secure personal content server |
US7953671B2 (en) | 1999-08-31 | 2011-05-31 | American Express Travel Related Services Company, Inc. | Methods and apparatus for conducting electronic transactions |
US7343351B1 (en) | 1999-08-31 | 2008-03-11 | American Express Travel Related Services Company, Inc. | Methods and apparatus for conducting electronic transactions |
US7889052B2 (en) | 2001-07-10 | 2011-02-15 | Xatra Fund Mx, Llc | Authorizing payment subsequent to RF transactions |
US6737957B1 (en) | 2000-02-16 | 2004-05-18 | Verance Corporation | Remote control signaling using audio watermarks |
CA2400161C (en) * | 2000-02-22 | 2015-11-24 | Metacarta, Inc. | Spatially coding and displaying information |
US7142691B2 (en) | 2000-03-18 | 2006-11-28 | Digimarc Corporation | Watermark embedding functions in rendering description files |
WO2001080169A1 (en) | 2000-04-17 | 2001-10-25 | Digimarc Corporation | Authentication of physical and electronic media objects using digital watermarks |
US7346184B1 (en) | 2000-05-02 | 2008-03-18 | Digimarc Corporation | Processing methods combining multiple frames of image data |
US7246239B2 (en) | 2001-01-24 | 2007-07-17 | Digimarc Corporation | Digital watermarks for checking authenticity of printed objects |
US7127615B2 (en) | 2000-09-20 | 2006-10-24 | Blue Spike, Inc. | Security based on subliminal and supraliminal channels for data objects |
US6965683B2 (en) | 2000-12-21 | 2005-11-15 | Digimarc Corporation | Routing networks for use with watermark systems |
US7607016B2 (en) | 2001-04-20 | 2009-10-20 | Digimarc Corporation | Including a metric in a digital watermark for media authentication |
US7725427B2 (en) | 2001-05-25 | 2010-05-25 | Fred Bishop | Recurrent billing maintenance with radio frequency payment devices |
US7668750B2 (en) | 2001-07-10 | 2010-02-23 | David S Bonalle | Securing RF transactions using a transactions counter |
US7705732B2 (en) | 2001-07-10 | 2010-04-27 | Fred Bishop | Authenticating an RF transaction using a transaction counter |
US7735725B1 (en) | 2001-07-10 | 2010-06-15 | Fred Bishop | Processing an RF transaction using a routing number |
US8548927B2 (en) | 2001-07-10 | 2013-10-01 | Xatra Fund Mx, Llc | Biometric registration for facilitating an RF transaction |
US8279042B2 (en) | 2001-07-10 | 2012-10-02 | Xatra Fund Mx, Llc | Iris scan biometrics on a payment device |
US7360689B2 (en) | 2001-07-10 | 2008-04-22 | American Express Travel Related Services Company, Inc. | Method and system for proffering multiple biometrics for use with a FOB |
US20040236699A1 (en) | 2001-07-10 | 2004-11-25 | American Express Travel Related Services Company, Inc. | Method and system for hand geometry recognition biometrics on a fob |
US7303120B2 (en) | 2001-07-10 | 2007-12-04 | American Express Travel Related Services Company, Inc. | System for biometric security using a FOB |
US8294552B2 (en) | 2001-07-10 | 2012-10-23 | Xatra Fund Mx, Llc | Facial scan biometrics on a payment device |
US9454752B2 (en) | 2001-07-10 | 2016-09-27 | Chartoleaux Kg Limited Liability Company | Reload protocol at a transaction processing entity |
US7249112B2 (en) | 2002-07-09 | 2007-07-24 | American Express Travel Related Services Company, Inc. | System and method for assigning a funding source for a radio frequency identification device |
US9024719B1 (en) | 2001-07-10 | 2015-05-05 | Xatra Fund Mx, Llc | RF transaction system and method for storing user personal data |
US9031880B2 (en) | 2001-07-10 | 2015-05-12 | Iii Holdings 1, Llc | Systems and methods for non-traditional payment using biometric data |
US8001054B1 (en) | 2001-07-10 | 2011-08-16 | American Express Travel Related Services Company, Inc. | System and method for generating an unpredictable number using a seeded algorithm |
US6817530B2 (en) | 2001-12-18 | 2004-11-16 | Digimarc Id Systems | Multiple image security features for identification documents and methods of making same |
ATE552120T1 (en) | 2001-12-24 | 2012-04-15 | L 1 Secure Credentialing Inc | HIDDEN VARIABLE INFORMATION ON ID DOCUMENTS AND METHODS FOR PRODUCING THEM |
US7728048B2 (en) | 2002-12-20 | 2010-06-01 | L-1 Secure Credentialing, Inc. | Increasing thermal conductivity of host polymer used with laser engraving methods and compositions |
US7321667B2 (en) | 2002-01-18 | 2008-01-22 | Digimarc Corporation | Data hiding through arrangement of objects |
US20070299034A1 (en) * | 2002-02-12 | 2007-12-27 | Marie-France Versali | Cell wall derivatives, their preparation process, and use thereof |
US7152786B2 (en) | 2002-02-12 | 2006-12-26 | Digimarc Corporation | Identification document including embedded data |
US8630526B1 (en) | 2002-04-12 | 2014-01-14 | At&T Intellectual Property Ii, L.P. | Method of indexing multimedia content by creating database records that include location data |
US7287275B2 (en) | 2002-04-17 | 2007-10-23 | Moskowitz Scott A | Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth |
US7824029B2 (en) | 2002-05-10 | 2010-11-02 | L-1 Secure Credentialing, Inc. | Identification card printer-assembler for over the counter card issuing |
US7974495B2 (en) | 2002-06-10 | 2011-07-05 | Digimarc Corporation | Identification and protection of video |
US7003131B2 (en) * | 2002-07-09 | 2006-02-21 | Kaleidescape, Inc. | Watermarking and fingerprinting digital content using alternative blocks to embed information |
US6805287B2 (en) | 2002-09-12 | 2004-10-19 | American Express Travel Related Services Company, Inc. | System and method for converting a stored value card to a credit card |
WO2004035321A1 (en) | 2002-10-15 | 2004-04-29 | Digimarc Corporation | Identification document and related methods |
US7091862B2 (en) * | 2002-11-22 | 2006-08-15 | Neology, Inc. | System and method for providing secure identification solutions utilizing a radio frequency device in a non-metallized region connected to a metallized region |
WO2004081649A2 (en) * | 2003-03-06 | 2004-09-23 | Digimarc Corporation | Camera and digital watermarking systems and methods |
US20040250142A1 (en) * | 2003-03-28 | 2004-12-09 | Feyler David M. | UV2D reader, age verification and license validation system |
US7194106B2 (en) | 2003-04-03 | 2007-03-20 | Digimarc Corporation | Creating electronic forms through digital watermarking |
ATE491190T1 (en) | 2003-04-16 | 2010-12-15 | L 1 Secure Credentialing Inc | THREE-DIMENSIONAL DATA STORAGE |
US20050063027A1 (en) | 2003-07-17 | 2005-03-24 | Durst Robert T. | Uniquely linking security elements in identification documents |
US8301893B2 (en) | 2003-08-13 | 2012-10-30 | Digimarc Corporation | Detecting media areas likely of hosting watermarks |
US8438395B2 (en) | 2003-09-18 | 2013-05-07 | Digimarc Corporation | Digitally watermarking documents associated with vehicles |
US7706565B2 (en) * | 2003-09-30 | 2010-04-27 | Digimarc Corporation | Multi-channel digital watermarking |
US9055239B2 (en) | 2003-10-08 | 2015-06-09 | Verance Corporation | Signal continuity assessment using embedded watermarks |
US7225977B2 (en) * | 2003-10-17 | 2007-06-05 | Digimarc Corporation | Fraud deterrence in connection with identity documents |
US7503488B2 (en) * | 2003-10-17 | 2009-03-17 | Davis Bruce L | Fraud prevention in issuance of identification credentials |
JP4356440B2 (en) * | 2003-12-12 | 2009-11-04 | 株式会社デンソー | Air conditioner for vehicles |
US7237184B2 (en) * | 2003-12-18 | 2007-06-26 | Microsoft Corporation | Data property promotion system and method |
US20050144444A1 (en) * | 2003-12-31 | 2005-06-30 | Hall Timothy G. | Data card and authentication process therefor |
US20050166052A1 (en) * | 2004-01-24 | 2005-07-28 | Ron Khormaei | Methods and apparatus to authenticate a document |
US8442331B2 (en) | 2004-02-15 | 2013-05-14 | Google Inc. | Capturing text from rendered documents using supplemental information |
US7643637B2 (en) * | 2004-02-10 | 2010-01-05 | Microsoft Corporation | Efficient code constructions via cryptographic assumptions |
JP4466108B2 (en) * | 2004-02-13 | 2010-05-26 | 株式会社日立製作所 | Certificate issuance method and certificate verification method |
US7275934B2 (en) * | 2004-02-14 | 2007-10-02 | Robert William Smyth | Magnetic apparatus for demonstration of binary numbers |
US10635723B2 (en) | 2004-02-15 | 2020-04-28 | Google Llc | Search engines and systems with handheld document data capture devices |
US20060041484A1 (en) * | 2004-04-01 | 2006-02-23 | King Martin T | Methods and systems for initiating application processes by data capture from rendered documents |
US7812860B2 (en) | 2004-04-01 | 2010-10-12 | Exbiblio B.V. | Handheld device for capturing text from both a document printed on paper and a document displayed on a dynamic display device |
US8799303B2 (en) | 2004-02-15 | 2014-08-05 | Google Inc. | Establishing an interactive environment for rendered documents |
US8127137B2 (en) * | 2004-03-18 | 2012-02-28 | Digimarc Corporation | Watermark payload encryption for media including multiple watermarks |
US7894670B2 (en) | 2004-04-01 | 2011-02-22 | Exbiblio B.V. | Triggering actions in response to optically or acoustically capturing keywords from a rendered document |
US9008447B2 (en) | 2004-04-01 | 2015-04-14 | Google Inc. | Method and system for character recognition |
US9116890B2 (en) | 2004-04-01 | 2015-08-25 | Google Inc. | Triggering actions in response to optically or acoustically capturing keywords from a rendered document |
US9143638B2 (en) | 2004-04-01 | 2015-09-22 | Google Inc. | Data capture from rendered documents using handheld device |
US20070300142A1 (en) | 2005-04-01 | 2007-12-27 | King Martin T | Contextual dynamic advertising based upon captured rendered text |
US8793162B2 (en) | 2004-04-01 | 2014-07-29 | Google Inc. | Adding information or functionality to a rendered document via association with an electronic counterpart |
US8621349B2 (en) | 2004-04-01 | 2013-12-31 | Google Inc. | Publishing techniques for adding value to a rendered document |
US20080313172A1 (en) | 2004-12-03 | 2008-12-18 | King Martin T | Determining actions involving captured information and electronic content associated with rendered documents |
JP4787525B2 (en) * | 2004-04-08 | 2011-10-05 | 株式会社リコー | Image processing apparatus, authenticity determination method, authenticity determination program, recording medium, and authenticity determination system |
US8713418B2 (en) * | 2004-04-12 | 2014-04-29 | Google Inc. | Adding value to a rendered document |
US9460346B2 (en) | 2004-04-19 | 2016-10-04 | Google Inc. | Handheld device for capturing text from both a document printed on paper and a document displayed on a dynamic display device |
US8489624B2 (en) | 2004-05-17 | 2013-07-16 | Google, Inc. | Processing techniques for text capture from a rendered document |
US8874504B2 (en) | 2004-12-03 | 2014-10-28 | Google Inc. | Processing techniques for visual capture data from a rendered document |
US20050288952A1 (en) * | 2004-05-18 | 2005-12-29 | Davis Bruce L | Official documents and methods of issuance |
EP1747529A1 (en) * | 2004-05-18 | 2007-01-31 | Silverbrook Research Pty. Ltd | Method and apparatus for security document tracking |
JP2005351994A (en) * | 2004-06-08 | 2005-12-22 | Sony Corp | Contents distribution server, contents distributing method and program |
US8509472B2 (en) * | 2004-06-24 | 2013-08-13 | Digimarc Corporation | Digital watermarking methods, programs and apparatus |
JP2006050551A (en) * | 2004-06-30 | 2006-02-16 | Canon Inc | Image processing apparatus, image processing method, program and storage medium |
US20060016876A1 (en) * | 2004-07-01 | 2006-01-26 | American Express Travel Related Services Company, Inc. | Method for registering a biometric for use with a smartcard-reader system |
US7318550B2 (en) | 2004-07-01 | 2008-01-15 | American Express Travel Related Services Company, Inc. | Biometric safeguard method for use with a smartcard |
US20060157559A1 (en) * | 2004-07-07 | 2006-07-20 | Levy Kenneth L | Systems and methods for document verification |
US8346620B2 (en) | 2004-07-19 | 2013-01-01 | Google Inc. | Automatic modification of web pages |
WO2006024991A1 (en) * | 2004-08-30 | 2006-03-09 | Koninklijke Philips Electronics N.V. | A method and system of authenticating access to a domain using a user identify card |
US8891811B2 (en) | 2004-09-17 | 2014-11-18 | Digimarc Corporation | Hierarchical watermark detector |
WO2006053023A2 (en) * | 2004-11-09 | 2006-05-18 | Digimarc Corporation | Authenticating identification and security documents |
WO2006063331A2 (en) * | 2004-12-09 | 2006-06-15 | New Technologies Armor, Inc. | Bit stream backup incorporating parallel processes |
DE102004059798A1 (en) | 2004-12-10 | 2006-06-29 | Ovd Kinegram Ag | Optically variable element with electrically active layer |
US7855810B2 (en) * | 2005-02-18 | 2010-12-21 | Eastman Kodak Company | Method for automatically organizing a digitized hardcopy media collection |
US20060244948A1 (en) * | 2005-04-12 | 2006-11-02 | Overbeck James L | Systems and methods for validating a security feature of an object |
US7711142B2 (en) * | 2005-05-03 | 2010-05-04 | Teselle John | Method and system for composing a digital signature graphic appearance and specifying a document display location thereof |
US7469828B2 (en) * | 2005-05-20 | 2008-12-30 | Computype, Inc. | Configuration system and method |
WO2007038653A2 (en) * | 2005-09-26 | 2007-04-05 | Digimarc Corporation | Secure core material for documents |
US20070069032A1 (en) * | 2005-09-26 | 2007-03-29 | Tung-Feng Yeh | Secure core material for documents |
US20090017765A1 (en) * | 2005-11-04 | 2009-01-15 | Dspv, Ltd | System and Method of Enabling a Cellular/Wireless Device with Imaging Capabilities to Decode Printed Alphanumeric Characters |
EP1802093A1 (en) * | 2005-12-26 | 2007-06-27 | Axalto SA | Method for image synchronisation for invisible marking |
US20070145293A1 (en) * | 2005-12-27 | 2007-06-28 | Ncr Corporation | Secure tag validation |
JP4896595B2 (en) * | 2006-01-18 | 2012-03-14 | 株式会社Pfu | Image reading apparatus and program |
JPWO2007094165A1 (en) | 2006-02-15 | 2009-07-02 | 日本電気株式会社 | Identification system and program, and identification method |
US7945070B2 (en) | 2006-02-24 | 2011-05-17 | Digimarc Corporation | Geographic-based watermarking keys |
US20070204162A1 (en) * | 2006-02-24 | 2007-08-30 | Rodriguez Tony F | Safeguarding private information through digital watermarking |
WO2011017393A1 (en) | 2009-08-04 | 2011-02-10 | Eyecue Vision Technologies Ltd. | System and method for object extraction |
US7738741B2 (en) * | 2006-04-19 | 2010-06-15 | Alcatel-Lucent Usa Inc. | Method and apparatus for RFID mapping to a digital camera and digital picture delivery system |
US8325969B2 (en) * | 2006-04-28 | 2012-12-04 | Hewlett-Packard Development Company, L.P. | Methods for making an authenticating system |
US8249350B2 (en) * | 2006-06-30 | 2012-08-21 | University Of Geneva | Brand protection and product autentication using portable devices |
JP5496663B2 (en) * | 2006-07-12 | 2014-05-21 | イルデト・コーポレート・ビー・ヴイ | Tamper resistance of digital data processing equipment |
US11019007B1 (en) * | 2006-07-13 | 2021-05-25 | United Services Automobile Association (Usaa) | Systems and methods for providing electronic official documents |
US7991157B2 (en) * | 2006-11-16 | 2011-08-02 | Digimarc Corporation | Methods and systems responsive to features sensed from imagery or other data |
US8565815B2 (en) * | 2006-11-16 | 2013-10-22 | Digimarc Corporation | Methods and systems responsive to features sensed from imagery or other data |
JP4708481B2 (en) * | 2006-12-25 | 2011-06-22 | 富士通株式会社 | Authentication device, authentication method, authentication program |
US7852196B1 (en) * | 2007-02-21 | 2010-12-14 | Sprint Communications Company L.P. | Systems and methods for electronic premises access |
FR2915600B1 (en) * | 2007-04-27 | 2009-08-21 | Att Sa | METHOD AND DEVICE FOR IDENTIFYING OBJECTS OR DOCUMENTS |
US8386923B2 (en) * | 2007-05-08 | 2013-02-26 | Canon Kabushiki Kaisha | Document generation apparatus, method, and storage medium |
EP2159072A4 (en) * | 2007-05-14 | 2013-02-27 | Internat Frontier Tech Lab Inc | Authenticity validation subject, authenticity validation chip reader, and authenticity judging method |
US9138636B2 (en) | 2007-05-16 | 2015-09-22 | Eyecue Vision Technologies Ltd. | System and method for calculating values in tile games |
US8144944B2 (en) * | 2007-08-14 | 2012-03-27 | Olympus Corporation | Image sharing system and method |
JP2009088614A (en) | 2007-09-27 | 2009-04-23 | Toshiba Corp | Image processing method and image processing apparatus |
DE102007059747A1 (en) * | 2007-12-07 | 2009-06-10 | Bundesdruckerei Gmbh | Polymer layer composite for a security and / or value document |
DE102008012426A1 (en) * | 2007-10-31 | 2009-05-07 | Bundesdruckerei Gmbh | Document-production method for producing a security inserts imaging information/data into layers of a document to form a total security image |
US10552701B2 (en) * | 2008-02-01 | 2020-02-04 | Oath Inc. | System and method for detecting the source of media content with application to business rules |
KR101753572B1 (en) * | 2008-10-14 | 2017-07-04 | 코닌클리케 필립스 엔.브이. | Content item identifier |
WO2010105245A2 (en) | 2009-03-12 | 2010-09-16 | Exbiblio B.V. | Automatically providing content associated with captured information, such as information captured in real-time |
US8447066B2 (en) | 2009-03-12 | 2013-05-21 | Google Inc. | Performing actions based on capturing information from rendered documents, such as documents under copyright |
DE102009021011A1 (en) | 2009-05-13 | 2010-11-18 | Siemens Aktiengesellschaft | Electronic key for authentication |
WO2010135263A2 (en) * | 2009-05-17 | 2010-11-25 | Deeper Arts, Inc. | System and method for creating and unlocking coded messages |
US8570546B2 (en) * | 2009-06-08 | 2013-10-29 | Palo Alto Research Center Incorporated | Method and system for printing documents from a portable device to any printer based on information contained in optical code |
US9595108B2 (en) | 2009-08-04 | 2017-03-14 | Eyecue Vision Technologies Ltd. | System and method for object extraction |
US8332281B2 (en) * | 2009-09-02 | 2012-12-11 | Image Holdings | Method of displaying, managing and selling images in an event photography environment |
CA2774353C (en) | 2009-09-16 | 2016-01-26 | Image Holdings | Method and system of displaying, managing and selling images in an event photography environment |
US8576049B2 (en) * | 2009-09-23 | 2013-11-05 | International Business Machines Corporation | Document authentication and identification |
US8511539B2 (en) * | 2009-10-19 | 2013-08-20 | Liberty Plugins, Inc. | Method and apparatus for parking lot metering |
US9081799B2 (en) | 2009-12-04 | 2015-07-14 | Google Inc. | Using gestalt information to identify locations in printed information |
US9323784B2 (en) | 2009-12-09 | 2016-04-26 | Google Inc. | Image search using text-based elements within the contents of images |
FR2955288B1 (en) * | 2010-01-18 | 2013-05-10 | Hologram Ind | METHOD FOR SECURING AN OBJECT, AND CORRESPONDING OBJECT |
US20110190030A1 (en) * | 2010-02-02 | 2011-08-04 | Glynntech, Inc. | Cell phone with dual thermometer functionality |
US8406571B2 (en) * | 2010-02-04 | 2013-03-26 | Yahoo! Inc. | Automatic super-resolution transformation for images |
US9501882B2 (en) | 2010-11-23 | 2016-11-22 | Morphotrust Usa, Llc | System and method to streamline identity verification at airports and beyond |
JP5760438B2 (en) * | 2010-12-28 | 2015-08-12 | 富士通株式会社 | Digital watermark embedding apparatus, digital watermark embedding method, digital watermark embedding computer program, and digital watermark detection apparatus |
US9336452B2 (en) | 2011-01-16 | 2016-05-10 | Eyecue Vision Technologies Ltd. | System and method for identification of printed matter in an image |
ES2669978T3 (en) | 2011-02-22 | 2018-05-29 | Tagivan Ii Llc | Filtering method, dynamic image coding device, dynamic image decoding device and dynamic image coding / decoding device |
MX2013001051A (en) | 2011-02-22 | 2013-04-03 | Panasonic Corp | Image encoding method, image decoding method, image encoding device, image decoding device, and image encoding/decoding device. |
US9443298B2 (en) | 2012-03-02 | 2016-09-13 | Authentect, Inc. | Digital fingerprinting object authentication and anti-counterfeiting system |
US8774455B2 (en) | 2011-03-02 | 2014-07-08 | Raf Technology, Inc. | Document fingerprinting |
US9652814B2 (en) * | 2011-03-29 | 2017-05-16 | Jura Trade, Limited | Method and apparatus for generating and authenticating security documents |
WO2012150601A1 (en) * | 2011-05-05 | 2012-11-08 | Au10Tix Limited | Apparatus and methods for authenticated and automated digital certificate production |
EP2724331B1 (en) * | 2011-06-27 | 2020-11-11 | Canadian Bank Note Company, Limited | Encoding hidden information in spatial line frequencies |
US9716711B2 (en) * | 2011-07-15 | 2017-07-25 | Pagemark Technology, Inc. | High-value document authentication system and method |
KR102064408B1 (en) | 2011-07-19 | 2020-01-09 | 타지반 투 엘엘씨 | Filtering method, decoding method, and coding method |
US9367770B2 (en) | 2011-08-30 | 2016-06-14 | Digimarc Corporation | Methods and arrangements for identifying objects |
US10474858B2 (en) | 2011-08-30 | 2019-11-12 | Digimarc Corporation | Methods of identifying barcoded items by evaluating multiple identification hypotheses, based on data from sensors including inventory sensors and ceiling-mounted cameras |
WO2013053111A1 (en) * | 2011-10-12 | 2013-04-18 | Qualcomm Incorporated | Detecting counterfeit print material with camera-equipped computing device |
DE102011117467A1 (en) * | 2011-11-02 | 2013-05-02 | Giesecke & Devrient Gmbh | document review |
US8745403B2 (en) | 2011-11-23 | 2014-06-03 | Verance Corporation | Enhanced content management based on watermark extraction records |
US9323902B2 (en) | 2011-12-13 | 2016-04-26 | Verance Corporation | Conditional access using embedded watermarks |
US9483794B2 (en) * | 2012-01-12 | 2016-11-01 | Kofax, Inc. | Systems and methods for identification document processing and business workflow integration |
US9165265B2 (en) | 2012-01-27 | 2015-10-20 | Phi, Inc. | Kiosk for energy industry logistics |
WO2013113003A1 (en) * | 2012-01-27 | 2013-08-01 | Phi, Inc. | Kiosk for energy sector logistics |
US8964239B2 (en) * | 2012-01-27 | 2015-02-24 | Xerox Corporation | Methods and systems for handling multiple documents while scanning |
US9378419B2 (en) | 2012-03-16 | 2016-06-28 | Hewlett-Packard Development Company, L.P. | Classifying images |
US8917930B2 (en) | 2012-05-08 | 2014-12-23 | Hewlett-Packard Development Company, L.P. | Selecting metrics for substrate classification |
US9401886B2 (en) * | 2012-05-30 | 2016-07-26 | International Business Machines Corporation | Preventing personal information from being posted to an internet |
FR2991539A1 (en) * | 2012-05-31 | 2013-12-06 | Ruggieri Pietro Ruggiero | METHOD AND SYSTEM FOR SECURING AN ORIGINAL DOCUMENT |
US8666155B2 (en) * | 2012-06-20 | 2014-03-04 | Xerox Corporation | Method and system for gray content detection in output documents for billing determinations |
US8726304B2 (en) | 2012-09-13 | 2014-05-13 | Verance Corporation | Time varying evaluation of multimedia content |
AU2012244309A1 (en) * | 2012-10-31 | 2014-05-15 | Canon Kabushiki Kaisha | Method, system and apparatus for determining position of a watermark annotation |
KR20150090153A (en) | 2012-11-23 | 2015-08-05 | 오말코 네트워크 솔루션스 리미티드 | Method of compensating for signal degradation in transmission systems |
US20140157114A1 (en) * | 2012-12-04 | 2014-06-05 | Nokia Corporation | Method and apparatus for formatting an optical machine readable object for display at point of use or sale |
US9202195B1 (en) * | 2013-03-12 | 2015-12-01 | Isaac S. Daniel | System and method for confirming mail delivery using an interactive electronic card |
US9262794B2 (en) * | 2013-03-14 | 2016-02-16 | Verance Corporation | Transactional video marking system |
US9495526B2 (en) | 2013-03-15 | 2016-11-15 | Eyelock Llc | Efficient prevention of fraud |
US20140270336A1 (en) * | 2013-03-15 | 2014-09-18 | Morphotrust Usa, Inc. | System and Method for Transaction Authentication |
US20140270404A1 (en) * | 2013-03-15 | 2014-09-18 | Eyelock, Inc. | Efficient prevention of fraud |
WO2014160582A1 (en) | 2013-03-28 | 2014-10-02 | Robert Andrew Eckel | System and method for transaction authentication |
DE102013007484A1 (en) * | 2013-04-29 | 2014-10-30 | Giesecke & Devrient Gmbh | Optically variable security element |
WO2014179810A1 (en) | 2013-05-03 | 2014-11-06 | Digimarc Corporation | Watermarking and signal recogniton for managing and sharing captured content, metadata discovery and related arrangements |
WO2014197202A1 (en) * | 2013-06-05 | 2014-12-11 | Morphotrust Usa, Inc. | System and method for credential authentication |
US9485089B2 (en) | 2013-06-20 | 2016-11-01 | Verance Corporation | Stego key management |
US9251549B2 (en) | 2013-07-23 | 2016-02-02 | Verance Corporation | Watermark extractor enhancements based on payload ranking |
US9407620B2 (en) | 2013-08-23 | 2016-08-02 | Morphotrust Usa, Llc | System and method for identity management |
WO2015031495A2 (en) * | 2013-08-27 | 2015-03-05 | Brian Martin | Digital watermarking |
US10282802B2 (en) | 2013-08-27 | 2019-05-07 | Morphotrust Usa, Llc | Digital identification document |
US9978112B2 (en) * | 2013-08-27 | 2018-05-22 | Morphotrust Usa, Llc | System and method for digital watermarking |
US10157437B2 (en) | 2013-08-27 | 2018-12-18 | Morphotrust Usa, Llc | System and method for digital watermarking |
US10320778B2 (en) | 2013-08-27 | 2019-06-11 | Morphotrust Usa, Llc | Digital identification document |
US9426328B2 (en) | 2013-08-28 | 2016-08-23 | Morphotrust Usa, Llc | Dynamic digital watermark |
US10007844B2 (en) * | 2013-08-28 | 2018-06-26 | Morphotrust Usa, Llc | System and method for digitally watermarking digital facial portraits |
US10249015B2 (en) | 2013-08-28 | 2019-04-02 | Morphotrust Usa, Llc | System and method for digitally watermarking digital facial portraits |
US9497349B2 (en) | 2013-08-28 | 2016-11-15 | Morphotrust Usa, Llc | Dynamic digital watermark |
US9208334B2 (en) | 2013-10-25 | 2015-12-08 | Verance Corporation | Content management using multiple abstraction layers |
US11962876B2 (en) | 2014-01-31 | 2024-04-16 | Digimarc Corporation | Recycling methods and systems, and related plastic containers |
US20190306385A1 (en) | 2014-01-31 | 2019-10-03 | Digimarc Corporation | Concerning digital marking and reading of plastic items, useful in recycling |
US10129251B1 (en) | 2014-02-11 | 2018-11-13 | Morphotrust Usa, Llc | System and method for verifying liveliness |
US9424619B2 (en) * | 2014-02-20 | 2016-08-23 | Google Inc. | Methods and systems for detecting frame tears |
US9594937B2 (en) | 2014-02-28 | 2017-03-14 | Electro Scientific Industries, Inc. | Optical mark reader |
US10504200B2 (en) | 2014-03-13 | 2019-12-10 | Verance Corporation | Metadata acquisition using embedded watermarks |
WO2015138798A1 (en) | 2014-03-13 | 2015-09-17 | Verance Corporation | Interactive content acquisition using embedded codes |
CN104980278B (en) * | 2014-04-14 | 2018-11-16 | 阿里巴巴集团控股有限公司 | The method and apparatus for verifying the availability of biometric image |
EP3138042B1 (en) * | 2014-04-29 | 2021-04-28 | Hewlett-Packard Development Company, L.P. | Machine-readable watermarks and barcodes in images |
US11615663B1 (en) * | 2014-06-17 | 2023-03-28 | Amazon Technologies, Inc. | User authentication system |
EP3183882A4 (en) | 2014-08-20 | 2018-07-04 | Verance Corporation | Content management based on dither-like watermark embedding |
US11341384B2 (en) * | 2014-08-28 | 2022-05-24 | Banctec, Incorporated | Document processing system and method for associating metadata with a physical document while maintaining the integrity of its content |
US10588005B2 (en) * | 2014-09-26 | 2020-03-10 | Mcafee, Llc | Fuzzy fingerprinting of communicating wearables |
WO2016118216A2 (en) | 2014-11-06 | 2016-07-28 | Intertrust Technologies Corporation | Secure application distribution systems and methods |
US9942602B2 (en) | 2014-11-25 | 2018-04-10 | Verance Corporation | Watermark detection and metadata delivery associated with a primary content |
EP3225034A4 (en) | 2014-11-25 | 2018-05-02 | Verance Corporation | Enhanced metadata and content delivery using watermarks |
WO2016100916A1 (en) | 2014-12-18 | 2016-06-23 | Verance Corporation | Service signaling recovery for multimedia content using embedded watermarks |
US10331291B1 (en) * | 2014-12-31 | 2019-06-25 | Morpho Trust USA, LLC | Visual verification of digital identifications |
US9374370B1 (en) | 2015-01-23 | 2016-06-21 | Island Intellectual Property, Llc | Invariant biohash security system and method |
EA029448B1 (en) * | 2015-03-25 | 2018-03-30 | Общество С Ограниченной Ответственностью "Центр Компьютерной Голографии" | Method for protection and identification of optical protective marks |
US10257567B2 (en) | 2015-04-30 | 2019-04-09 | Verance Corporation | Watermark based content recognition improvements |
US10477285B2 (en) | 2015-07-20 | 2019-11-12 | Verance Corporation | Watermark-based data recovery for content with multiple alternative components |
US10198612B1 (en) * | 2015-07-29 | 2019-02-05 | Morphotrust Usa, Llc | System and method for scaling biometric images |
US10377162B2 (en) | 2015-10-19 | 2019-08-13 | Hydra Management Llc | Instant ticket redundancy via multi-chromatic indicia |
US9690967B1 (en) | 2015-10-29 | 2017-06-27 | Digimarc Corporation | Detecting conflicts between multiple different encoded signals within imagery |
CN106682912B (en) * | 2015-11-10 | 2021-06-15 | 艾普维真股份有限公司 | Authentication method of 3D structure |
JP6970686B2 (en) | 2015-12-31 | 2021-11-24 | ライブランプ インコーポレーテッド | Salting text in database tables, text files, and data feeds |
US10291655B2 (en) | 2015-12-31 | 2019-05-14 | Morphotrust Usa, Llc | User interface for tiered access to identification documents |
JP6728699B2 (en) * | 2016-01-15 | 2020-07-22 | 富士通株式会社 | Biometric authentication device, biometric authentication method, and biometric authentication program |
JP6934022B2 (en) | 2016-02-18 | 2021-09-08 | ライブランプ インコーポレーテッド | Salting text and fingerprinting in database tables, text files, and data feeds |
US10621594B2 (en) | 2016-02-19 | 2020-04-14 | Alitheon, Inc. | Multi-level authentication |
US10262176B1 (en) | 2016-02-23 | 2019-04-16 | Digimarc Corporation | Scanner with control logic for resolving package labeling |
DE102016103694A1 (en) * | 2016-03-02 | 2017-09-07 | Ovd Kinegram Ag | Security document and method for its authentication |
WO2017148704A1 (en) | 2016-03-02 | 2017-09-08 | Ovd Kinegram Ag | Security document and method for the authentication thereof |
WO2017165242A1 (en) | 2016-03-21 | 2017-09-28 | Acxiom Corporation | Data watermarking and fingerprinting system and method |
EP3236401A1 (en) | 2016-04-18 | 2017-10-25 | Alitheon, Inc. | Authentication-triggered processes |
US20190132652A1 (en) | 2016-04-18 | 2019-05-02 | Verance Corporation | System and method for signaling security and database population |
US10740767B2 (en) | 2016-06-28 | 2020-08-11 | Alitheon, Inc. | Centralized databases storing digital fingerprints of objects for collaborative authentication |
US10915612B2 (en) | 2016-07-05 | 2021-02-09 | Alitheon, Inc. | Authenticated production |
US10902540B2 (en) * | 2016-08-12 | 2021-01-26 | Alitheon, Inc. | Event-driven authentication of physical objects |
US10839528B2 (en) | 2016-08-19 | 2020-11-17 | Alitheon, Inc. | Authentication-based tracking |
US10198782B1 (en) * | 2016-09-15 | 2019-02-05 | Digimarc Corporation | Detecting conflicts between multiple different encoded signals within imagery |
DE102016119343A1 (en) * | 2016-10-11 | 2018-04-12 | Bircher Reglomat Ag | Object monitoring with infrared image recording and infrared pulse illumination |
US10452908B1 (en) | 2016-12-23 | 2019-10-22 | Wells Fargo Bank, N.A. | Document fraud detection |
AU2017388754A1 (en) * | 2016-12-29 | 2019-07-11 | Idemia Identity & Security USA LLC | Trusted mobile biometric enrollment |
WO2018125776A1 (en) * | 2016-12-30 | 2018-07-05 | Wu Yecheng | Optically variable ghost image with embedded data |
US11257198B1 (en) * | 2017-04-28 | 2022-02-22 | Digimarc Corporation | Detection of encoded signals and icons |
US10122889B1 (en) * | 2017-05-08 | 2018-11-06 | Bank Of America Corporation | Device for generating a resource distribution document with physical authentication markers |
US11297398B2 (en) | 2017-06-21 | 2022-04-05 | Verance Corporation | Watermark-based metadata acquisition and processing |
EP3435287A3 (en) | 2017-07-25 | 2019-05-01 | Alitheon, Inc. | Model-based digital fingerprinting |
US10325256B2 (en) | 2017-08-07 | 2019-06-18 | Bank Of America Corporation | Anchor tags for use with individual signer profile cards |
EP3457323A1 (en) * | 2017-09-18 | 2019-03-20 | Gemalto Sa | Data carrier and a method for producing such data carrier |
WO2019133971A1 (en) * | 2017-12-29 | 2019-07-04 | Jones Robert L | Pixelation density increment for embedding information |
EP3514715A1 (en) | 2018-01-22 | 2019-07-24 | Alitheon, Inc. | Secure digital fingerprint key object database |
US10915771B2 (en) * | 2018-02-13 | 2021-02-09 | Integrated Biometrics, Llc | Method and apparatus for securing a captured fingerprint |
RU2715515C2 (en) * | 2018-03-30 | 2020-02-28 | Акционерное общество "Лаборатория Касперского" | System and method of detecting image containing identification document |
JP2019185384A (en) * | 2018-04-10 | 2019-10-24 | キヤノン株式会社 | Image authentication device, image authentication method, computer program and storage medium |
US11468149B2 (en) | 2018-04-17 | 2022-10-11 | Verance Corporation | Device authentication in collaborative content screening |
US10880451B2 (en) | 2018-06-08 | 2020-12-29 | Digimarc Corporation | Aggregating detectability metrics to determine signal robustness |
US10963670B2 (en) | 2019-02-06 | 2021-03-30 | Alitheon, Inc. | Object change detection and measurement using digital fingerprints |
US10789438B1 (en) | 2019-02-08 | 2020-09-29 | Digimarc Corporation | Detecting conflicts between multiple different encoded signals within imagery, using only a subset of available image data |
US11250535B1 (en) | 2019-02-08 | 2022-02-15 | Digimarc Corporation | Detecting conflicts between multiple different encoded signals within imagery, using only a subset of available image data, and robustness checks |
US11568165B1 (en) | 2019-04-15 | 2023-01-31 | Digimarc Corporation | Methods and arrangements for optical code classification |
EP3734506A1 (en) | 2019-05-02 | 2020-11-04 | Alitheon, Inc. | Automated authentication region localization and capture |
EP3736717A1 (en) | 2019-05-10 | 2020-11-11 | Alitheon, Inc. | Loop chain digital fingerprint method and system |
TWI725443B (en) * | 2019-06-03 | 2021-04-21 | 銓鴻資訊有限公司 | Method of registration and access control of identity for third-party certification |
CN110378351B (en) * | 2019-07-26 | 2021-11-26 | 中国工商银行股份有限公司 | Seal identification method and device |
US11283937B1 (en) * | 2019-08-15 | 2022-03-22 | Ikorongo Technology, LLC | Sharing images based on face matching in a network |
JP7142709B2 (en) * | 2019-09-06 | 2022-09-27 | グーグル エルエルシー | Detecting translucent image watermarks |
US10691938B1 (en) * | 2019-09-30 | 2020-06-23 | Capital One Services, Llc | Systems and methods for authenticating a stack of cards |
US11238146B2 (en) | 2019-10-17 | 2022-02-01 | Alitheon, Inc. | Securing composite objects using digital fingerprints |
JP2023502584A (en) * | 2019-10-29 | 2023-01-25 | ウーリー ラブス インコーポレイテッド ディービーエー ヴァウチト | System and method for authentication of documents |
EP3859603A1 (en) | 2020-01-28 | 2021-08-04 | Alitheon, Inc. | Depth-based digital fingerprinting |
US11341348B2 (en) | 2020-03-23 | 2022-05-24 | Alitheon, Inc. | Hand biometrics system and method using digital fingerprints |
US11568683B2 (en) | 2020-03-23 | 2023-01-31 | Alitheon, Inc. | Facial biometrics system and method using digital fingerprints |
KR20210121779A (en) * | 2020-03-31 | 2021-10-08 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | Provision of voice information by using printout on which attribute information of document is recorded |
US11948377B2 (en) | 2020-04-06 | 2024-04-02 | Alitheon, Inc. | Local encoding of intrinsic authentication data |
US11663849B1 (en) | 2020-04-23 | 2023-05-30 | Alitheon, Inc. | Transform pyramiding for fingerprint matching system and method |
EP3910554B1 (en) * | 2020-05-12 | 2024-01-10 | Mastercard International Incorporated | Credential device security |
US11700123B2 (en) | 2020-06-17 | 2023-07-11 | Alitheon, Inc. | Asset-backed digital security tokens |
EP4168904A4 (en) * | 2020-06-22 | 2023-12-20 | ID Metrics Group Incorporated | Generating obfuscated identification templates for transaction verification |
CN111914836A (en) * | 2020-07-08 | 2020-11-10 | 浙江大华技术股份有限公司 | Identity card information extraction method, device, equipment and medium |
TW202222557A (en) | 2020-07-31 | 2022-06-16 | 美商數字標識公司 | Encoding signals on flexographic printing plates to enable tracking and management |
US11722741B2 (en) | 2021-02-08 | 2023-08-08 | Verance Corporation | System and method for tracking content timeline in the presence of playback rate changes |
US20230017185A1 (en) * | 2021-07-15 | 2023-01-19 | Innov8Tif Solutions Sdn. Bhd. | Method to determine authenticity of security hologram |
Family Cites Families (189)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4379947A (en) * | 1979-02-02 | 1983-04-12 | Teleprompter Corporation | System for transmitting data simultaneously with audio |
US4313197A (en) * | 1980-04-09 | 1982-01-26 | Bell Telephone Laboratories, Incorporated | Spread spectrum arrangement for (de)multiplexing speech signals and nonspeech signals |
US4367488A (en) * | 1980-12-08 | 1983-01-04 | Sterling Television Presentations Inc. Video Data Systems Division | Data encoding for television |
US4380027A (en) * | 1980-12-08 | 1983-04-12 | William Leventer | Data encoding for television |
US4425642A (en) * | 1982-01-08 | 1984-01-10 | Applied Spectrum Technologies, Inc. | Simultaneous transmission of two information signals within a band-limited communications channel |
SE463897B (en) * | 1983-07-01 | 1991-02-04 | Esselte Security Syst Ab | PROCEDURE PROVIDES TO SAY SIMPLE CODES |
US4660221A (en) * | 1983-07-18 | 1987-04-21 | Pitney Bowes Inc. | System for printing encrypted messages with bar-code representation |
KR890002004B1 (en) * | 1984-01-11 | 1989-06-07 | 가부시끼 가이샤 도오시바 | Distinction apparatus of papers |
US4728984A (en) | 1986-11-17 | 1988-03-01 | Xerox Corporation | Data handling and archiving system |
US4930158A (en) | 1987-09-02 | 1990-05-29 | Vogel Peter S | Selective video playing system |
US4807031A (en) * | 1987-10-20 | 1989-02-21 | Interactive Systems, Incorporated | Interactive video method and apparatus |
US4908836A (en) * | 1988-10-11 | 1990-03-13 | Unisys Corporation | Method and apparatus for decoding multiple bit sequences that are transmitted simultaneously in a single channel |
US5253066C1 (en) | 1989-06-01 | 2001-05-22 | United Video Properties Inc | Tv recording and viewing control system |
US4994831A (en) * | 1989-12-11 | 1991-02-19 | Beattie Systems, Inc. | Floating image camera |
US5113445A (en) * | 1990-07-09 | 1992-05-12 | Symbol Technologies Inc. | System for encoding data in machine readable graphic form |
US5337361C1 (en) | 1990-01-05 | 2001-05-15 | Symbol Technologies Inc | Record with encoded data |
ES2081735B1 (en) * | 1990-04-27 | 1996-10-01 | Scandic Int Pty Ltd | DEVICE AND METHOD FOR THE VALIDATION OF SMART CARDS. |
US5396559A (en) * | 1990-08-24 | 1995-03-07 | Mcgrew; Stephen P. | Anticounterfeiting method and device utilizing holograms and pseudorandom dot patterns |
US5284364A (en) * | 1992-06-10 | 1994-02-08 | Anvik Corporation | Increased-security identification card system |
US5721788A (en) * | 1992-07-31 | 1998-02-24 | Corbis Corporation | Method and system for digital image signatures |
US5751854A (en) * | 1992-08-03 | 1998-05-12 | Ricoh Company, Ltd. | Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system |
DK0688487T3 (en) | 1992-11-16 | 2005-01-31 | Arbitron Inc | Method and apparatus for encoding / decoding broadcast or recorded segments and monitoring public exposure thereto |
US5864622A (en) * | 1992-11-20 | 1999-01-26 | Pitney Bowes Inc. | Secure identification card and method and apparatus for producing and authenticating same |
US5379345A (en) * | 1993-01-29 | 1995-01-03 | Radio Audit Systems, Inc. | Method and apparatus for the processing of encoded data in conjunction with an audio broadcast |
US5490217A (en) * | 1993-03-05 | 1996-02-06 | Metanetics Corporation | Automatic document handling system |
US5546462A (en) * | 1993-04-09 | 1996-08-13 | Washington University | Method and apparatus for fingerprinting and authenticating various magnetic media |
US5384846A (en) * | 1993-04-26 | 1995-01-24 | Pitney Bowes Inc. | System and apparatus for controlled production of a secure identification card |
US5505494B1 (en) * | 1993-09-17 | 1998-09-29 | Bell Data Software Corp | System for producing a personal id card |
US20040057581A1 (en) | 1993-11-18 | 2004-03-25 | Rhoads Geoffrey B. | Method and apparatus for transaction card security utilizing embedded image data |
US6944298B1 (en) | 1993-11-18 | 2005-09-13 | Digimare Corporation | Steganographic encoding and decoding of auxiliary codes in media signals |
US5841886A (en) | 1993-11-18 | 1998-11-24 | Digimarc Corporation | Security system for photographic identification |
US6757406B2 (en) | 1993-11-18 | 2004-06-29 | Digimarc Corporation | Steganographic image processing |
US20020009208A1 (en) * | 1995-08-09 | 2002-01-24 | Adnan Alattar | Authentication of physical and electronic media objects using digital watermarks |
US5748763A (en) | 1993-11-18 | 1998-05-05 | Digimarc Corporation | Image steganography system featuring perceptually adaptive and globally scalable signal embedding |
US6345104B1 (en) | 1994-03-17 | 2002-02-05 | Digimarc Corporation | Digital watermarks and methods for security documents |
US6516079B1 (en) * | 2000-02-14 | 2003-02-04 | Digimarc Corporation | Digital watermark screening and detecting strategies |
US6574350B1 (en) | 1995-05-08 | 2003-06-03 | Digimarc Corporation | Digital watermarking employing both frail and robust watermarks |
US6424725B1 (en) * | 1996-05-16 | 2002-07-23 | Digimarc Corporation | Determining transformations of media signals with embedded code signals |
US5862260A (en) * | 1993-11-18 | 1999-01-19 | Digimarc Corporation | Methods for surveying dissemination of proprietary empirical data |
EP0987855A2 (en) | 1993-11-18 | 2000-03-22 | Digimarc Corporation | Method and apparatus for encoding audio with auxiliary digital data |
US6983051B1 (en) | 1993-11-18 | 2006-01-03 | Digimarc Corporation | Methods for audio watermarking and decoding |
US7113615B2 (en) | 1993-11-18 | 2006-09-26 | Digimarc Corporation | Watermark embedder and reader |
US6580819B1 (en) * | 1993-11-18 | 2003-06-17 | Digimarc Corporation | Methods of producing security documents having digitally encoded data and documents employing same |
US6449377B1 (en) | 1995-05-08 | 2002-09-10 | Digimarc Corporation | Methods and systems for watermark processing of line art images |
US6614914B1 (en) | 1995-05-08 | 2003-09-02 | Digimarc Corporation | Watermark embedder and reader |
US7720249B2 (en) | 1993-11-18 | 2010-05-18 | Digimarc Corporation | Watermark embedder and reader |
US5768426A (en) | 1993-11-18 | 1998-06-16 | Digimarc Corporation | Graphics processing system employing embedded code signals |
US6549638B2 (en) * | 1998-11-03 | 2003-04-15 | Digimarc Corporation | Methods for evidencing illicit use of a computer system or device |
US6546112B1 (en) * | 1993-11-18 | 2003-04-08 | Digimarc Corporation | Security document with steganographically-encoded authentication data |
US7676059B2 (en) | 1994-10-21 | 2010-03-09 | Digimarc Corporation | Video steganography or encoding |
US5499294A (en) * | 1993-11-24 | 1996-03-12 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Digital camera with apparatus for authentication of images produced from an image file |
SE502658C2 (en) * | 1994-02-28 | 1995-12-04 | Non Stop Info Ab | Procedure and control device for reading identity and value documents. |
US5748780A (en) * | 1994-04-07 | 1998-05-05 | Stolfo; Salvatore J. | Method and apparatus for imaging, image processing and data compression |
US6993152B2 (en) | 1994-03-17 | 2006-01-31 | Digimarc Corporation | Hiding geo-location data through arrangement of objects |
US7286684B2 (en) | 1994-03-17 | 2007-10-23 | Digimarc Corporation | Secure document design carrying auxiliary machine readable information |
US6985600B2 (en) * | 1994-03-17 | 2006-01-10 | Digimarc Corporation | Printing media and methods employing digital watermarking |
US6869023B2 (en) * | 2002-02-12 | 2005-03-22 | Digimarc Corporation | Linking documents through digital watermarking |
US6882738B2 (en) | 1994-03-17 | 2005-04-19 | Digimarc Corporation | Methods and tangible objects employing textured machine readable data |
US8144368B2 (en) | 1998-01-20 | 2012-03-27 | Digimarc Coporation | Automated methods for distinguishing copies from original printed objects |
US20020136429A1 (en) | 1994-03-17 | 2002-09-26 | John Stach | Data hiding through arrangement of objects |
US5493677A (en) * | 1994-06-08 | 1996-02-20 | Systems Research & Applications Corporation | Generation, archiving, and retrieval of digital images with evoked suggestion-set captions and natural language interface |
JP2996277B2 (en) | 1994-06-15 | 1999-12-27 | 富士ゼロックス株式会社 | Image forming device |
US5719948A (en) | 1994-06-24 | 1998-02-17 | Angstrom Technologies, Inc. | Apparatus and methods for fluorescent imaging and optical character reading |
US5907149A (en) * | 1994-06-27 | 1999-05-25 | Polaroid Corporation | Identification card with delimited usage |
BR9508403A (en) * | 1994-07-14 | 1997-11-11 | Johnson Grace Company | Method and apparatus for image compression |
US6535618B1 (en) | 1994-10-21 | 2003-03-18 | Digimarc Corporation | Image capture device with steganographic data embedding |
US6560349B1 (en) * | 1994-10-21 | 2003-05-06 | Digimarc Corporation | Audio monitoring using steganographic information |
US7724919B2 (en) | 1994-10-21 | 2010-05-25 | Digimarc Corporation | Methods and systems for steganographic processing |
US6778682B2 (en) | 1994-10-21 | 2004-08-17 | Digimarc Corporation | Redundantly embedding auxiliary data in source signals |
EP0713197A1 (en) * | 1994-11-15 | 1996-05-22 | Landis & Gyr Technology Innovation AG | Data carrier and corresponding read/write device |
US5499293A (en) * | 1995-01-24 | 1996-03-12 | University Of Maryland | Privacy protected information medium using a data compression method |
EP1555591B1 (en) * | 1995-02-13 | 2013-08-14 | Intertrust Technologies Corp. | Secure transaction management |
US5892900A (en) * | 1996-08-30 | 1999-04-06 | Intertrust Technologies Corp. | Systems and methods for secure transaction management and electronic rights protection |
US5799092A (en) | 1995-02-28 | 1998-08-25 | Lucent Technologies Inc. | Self-verifying identification card |
FR2732532B1 (en) | 1995-03-29 | 1997-06-20 | Lahmi Paul David | SECURE PROCESS FOR REPRODUCING SENSITIVE DOCUMENTS |
US6760463B2 (en) | 1995-05-08 | 2004-07-06 | Digimarc Corporation | Watermarking methods and media |
US20030133592A1 (en) | 1996-05-07 | 2003-07-17 | Rhoads Geoffrey B. | Content objects with computer instructions steganographically encoded therein, and associated methods |
US20090097695A9 (en) | 1995-05-08 | 2009-04-16 | Rhoads Geoffrey B | Personal document authentication system using watermarking |
US6728390B2 (en) * | 1995-05-08 | 2004-04-27 | Digimarc Corporation | Methods and systems using multiple watermarks |
US6738495B2 (en) | 1995-05-08 | 2004-05-18 | Digimarc Corporation | Watermarking enhanced to withstand anticipated corruptions |
US7555139B2 (en) | 1995-05-08 | 2009-06-30 | Digimarc Corporation | Secure documents with hidden signals, and related methods and systems |
US7724920B2 (en) | 1995-05-08 | 2010-05-25 | Digimarc Corporation | Digital authentication with analog documents |
US6718046B2 (en) * | 1995-05-08 | 2004-04-06 | Digimarc Corporation | Low visibility watermark using time decay fluorescence |
US7054462B2 (en) | 1995-05-08 | 2006-05-30 | Digimarc Corporation | Inferring object status based on detected watermark data |
US7486799B2 (en) | 1995-05-08 | 2009-02-03 | Digimarc Corporation | Methods for monitoring audio and images on the internet |
US5613004A (en) * | 1995-06-07 | 1997-03-18 | The Dice Company | Steganographic method and device |
US5786587A (en) | 1995-08-10 | 1998-07-28 | American Bank Note Holographics, Inc. | Enhancement of chip card security |
US5765152A (en) | 1995-10-13 | 1998-06-09 | Trustees Of Dartmouth College | System and method for managing copyrighted electronic media |
US5859920A (en) * | 1995-11-30 | 1999-01-12 | Eastman Kodak Company | Method for embedding digital information in an image |
US5838814A (en) * | 1996-01-02 | 1998-11-17 | Moore; Steven Jerome | Security check method and apparatus |
US5822432A (en) * | 1996-01-17 | 1998-10-13 | The Dice Company | Method for human-assisted random key generation and application for digital watermark system |
US7159116B2 (en) * | 1999-12-07 | 2007-01-02 | Blue Spike, Inc. | Systems, methods and devices for trusted transactions |
US6463416B1 (en) | 1996-07-15 | 2002-10-08 | Intelli-Check, Inc. | Authentication system for identification documents |
US5864623A (en) * | 1996-07-15 | 1999-01-26 | Intellicheck Inc. | Authentication system for driver licenses |
US6226387B1 (en) * | 1996-08-30 | 2001-05-01 | Regents Of The University Of Minnesota | Method and apparatus for scene-based video watermarking |
US6272634B1 (en) | 1996-08-30 | 2001-08-07 | Regents Of The University Of Minnesota | Digital watermarking to resolve multiple claims of ownership |
US20060028689A1 (en) | 1996-11-12 | 2006-02-09 | Perry Burt W | Document management with embedded data |
EP0851397B1 (en) * | 1996-11-28 | 2008-10-01 | Nec Corporation | Card type recording medium, certifying method and apparatus for the recording medium, forming system for recording medium, enciphering system, decoder therefor, and recording medium |
JP3901268B2 (en) | 1997-01-23 | 2007-04-04 | ソニー株式会社 | Information signal output control device, information signal output control method, information signal duplication prevention device, and information signal duplication prevention method |
US6185312B1 (en) * | 1997-01-28 | 2001-02-06 | Nippon Telegraph And Telephone Corporation | Method for embedding and reading watermark-information in digital form, and apparatus thereof |
US6233684B1 (en) * | 1997-02-28 | 2001-05-15 | Contenaguard Holdings, Inc. | System for controlling the distribution and use of rendered digital works through watermaking |
AUPO799197A0 (en) * | 1997-07-15 | 1997-08-07 | Silverbrook Research Pty Ltd | Image processing method and apparatus (ART01) |
US6786420B1 (en) * | 1997-07-15 | 2004-09-07 | Silverbrook Research Pty. Ltd. | Data distribution mechanism in the form of ink dots on cards |
US7941534B2 (en) * | 1997-04-14 | 2011-05-10 | Carlos De La Huerga | System and method to authenticate users to computer systems |
US6125172A (en) | 1997-04-18 | 2000-09-26 | Lucent Technologies, Inc. | Apparatus and method for initiating a transaction having acoustic data receiver that filters human voice |
US6065119A (en) * | 1997-05-30 | 2000-05-16 | The Regents Of The University Of California | Data validation |
JPH114337A (en) * | 1997-06-11 | 1999-01-06 | Canon Inc | Image processor and image processing method |
US6334187B1 (en) | 1997-07-03 | 2001-12-25 | Matsushita Electric Industrial Co., Ltd. | Information embedding method, information extracting method, information embedding apparatus, information extracting apparatus, and recording media |
JPH1132200A (en) * | 1997-07-09 | 1999-02-02 | Matsushita Electric Ind Co Ltd | Watermark data insertion method and watermark data detection method |
US6523741B1 (en) * | 1997-09-05 | 2003-02-25 | Dimaria Peter C. | Apparatus for controlling the rental and sale of age-controlled merchandise and for controlling access to age-controlled services |
US6208735B1 (en) * | 1997-09-10 | 2001-03-27 | Nec Research Institute, Inc. | Secure spread spectrum watermarking for multimedia data |
JP4064506B2 (en) * | 1997-09-17 | 2008-03-19 | パイオニア株式会社 | Digital watermark superimposing method, detecting method and apparatus |
US6850626B2 (en) | 1998-01-20 | 2005-02-01 | Digimarc Corporation | Methods employing multiple watermarks |
JP4313873B2 (en) | 1998-01-30 | 2009-08-12 | キヤノン株式会社 | Electronic device and data processing method |
US6064764A (en) * | 1998-03-30 | 2000-05-16 | Seiko Epson Corporation | Fragile watermarks for detecting tampering in images |
US7756892B2 (en) * | 2000-05-02 | 2010-07-13 | Digimarc Corporation | Using embedded data with file sharing |
US6608911B2 (en) * | 2000-12-21 | 2003-08-19 | Digimarc Corporation | Digitally watermaking holograms for use with smart cards |
US7372976B2 (en) | 1998-04-16 | 2008-05-13 | Digimarc Corporation | Content indexing and searching using content identifiers and associated metadata |
US7602940B2 (en) | 1998-04-16 | 2009-10-13 | Digimarc Corporation | Steganographic data hiding using a device clock |
US6243480B1 (en) | 1998-04-30 | 2001-06-05 | Jian Zhao | Digital authentication with analog documents |
US6487301B1 (en) | 1998-04-30 | 2002-11-26 | Mediasec Technologies Llc | Digital authentication with digital and analog documents |
JP3201347B2 (en) * | 1998-05-15 | 2001-08-20 | 日本電気株式会社 | Image attribute change device and digital watermark device |
US6233347B1 (en) * | 1998-05-21 | 2001-05-15 | Massachusetts Institute Of Technology | System method, and product for information embedding using an ensemble of non-intersecting embedding generators |
JP3156667B2 (en) * | 1998-06-01 | 2001-04-16 | 日本電気株式会社 | Digital watermark insertion system, digital watermark characteristic table creation device |
JP3925584B2 (en) | 1998-06-09 | 2007-06-06 | ソニー株式会社 | Replication generation management method and recording / reproducing system |
US6571001B2 (en) * | 1998-06-10 | 2003-05-27 | Micron Technology, Inc. | System for detecting photocopied or laser-printed documents |
US6272176B1 (en) | 1998-07-16 | 2001-08-07 | Nielsen Media Research, Inc. | Broadcast encoding system and method |
US6978036B2 (en) | 1998-07-31 | 2005-12-20 | Digimarc Corporation | Tamper-resistant authentication techniques for identification documents |
US6369904B1 (en) * | 1998-08-18 | 2002-04-09 | Seiko Epson Corporation | User verification by zero-knowledge interactive proof |
US7313253B2 (en) | 1998-09-11 | 2007-12-25 | Digimarc Corporation | Methods and tangible objects employing machine readable data in photo-reactive materials |
US8332478B2 (en) * | 1998-10-01 | 2012-12-11 | Digimarc Corporation | Context sensitive connected content |
US8290202B2 (en) | 1998-11-03 | 2012-10-16 | Digimarc Corporation | Methods utilizing steganography |
EP1131769B1 (en) | 1998-11-19 | 2005-02-16 | Digimarc Corporation | Printing and validation of self validating security documents |
US6314569B1 (en) | 1998-11-25 | 2001-11-06 | International Business Machines Corporation | System for video, audio, and graphic presentation in tandem with video/audio play |
JP3868643B2 (en) | 1998-12-03 | 2007-01-17 | 株式会社日立製作所 | Digital information duplication restriction method, digital information duplication restriction device, and digital information recording device |
US6321981B1 (en) * | 1998-12-22 | 2001-11-27 | Eastman Kodak Company | Method and apparatus for transaction card security utilizing embedded image data |
GB2364513B (en) | 1998-12-23 | 2003-04-09 | Kent Ridge Digital Labs | Method and apparatus for protecting the legitimacy of an article |
US6591365B1 (en) | 1999-01-21 | 2003-07-08 | Time Warner Entertainment Co., Lp | Copy protection control system |
US6694884B2 (en) * | 1999-01-25 | 2004-02-24 | Fargo Electronics, Inc. | Method and apparatus for communicating between printer and card supply |
US6442284B1 (en) * | 1999-03-19 | 2002-08-27 | Digimarc Corporation | Watermark detection utilizing regions with higher probability of success |
US6314457B1 (en) * | 1999-04-21 | 2001-11-06 | Airclic, Inc. | Method for managing printed medium activated revenue sharing domain name system schemas |
US7302574B2 (en) | 1999-05-19 | 2007-11-27 | Digimarc Corporation | Content identifiers triggering corresponding responses through collaborative processing |
US6522769B1 (en) | 1999-05-19 | 2003-02-18 | Digimarc Corporation | Reconfiguring a watermark detector |
US6785815B1 (en) | 1999-06-08 | 2004-08-31 | Intertrust Technologies Corp. | Methods and systems for encoding and protecting data using digital signature and watermarking techniques |
US6456726B1 (en) | 1999-10-26 | 2002-09-24 | Matsushita Electric Industrial Co., Ltd. | Methods and apparatus for multi-layer data hiding |
KR100699236B1 (en) * | 1999-12-07 | 2007-03-27 | 선 마이크로시스템즈 인코포레이티드 | Secure photo carrying identification device, as well as means and method for authenticating such an identification device |
TW533381B (en) * | 2000-02-29 | 2003-05-21 | Tokyo Shibaura Electric Co | Automatic ticket checking apparatus, ticket checking method thereof and radio communication equipment |
JP3789069B2 (en) | 2000-02-29 | 2006-06-21 | キヤノン株式会社 | Digital watermark embedding apparatus and method, program and storage medium, and digital watermark extraction apparatus and method, program and storage medium |
US7127744B2 (en) | 2000-03-10 | 2006-10-24 | Digimarc Corporation | Method and apparatus to protect media existing in an insecure format |
EP1193975A4 (en) | 2000-04-04 | 2005-01-26 | Sony Corp | Transmitter, signal transmitting method, data distributing system and its method, data receiver, data providing device and its method and data transmitter |
US7305104B2 (en) * | 2000-04-21 | 2007-12-04 | Digimarc Corporation | Authentication of identification documents using digital watermarks |
US20020011519A1 (en) * | 2000-05-04 | 2002-01-31 | Shults John R. | System and method for consumer identification using optical and electronic means |
ATE271253T1 (en) | 2000-05-10 | 2004-07-15 | Koninkl Philips Electronics Nv | COPY PROTECTION SYSTEM |
AU2001271311A1 (en) * | 2000-06-15 | 2001-12-24 | Hart Intercivic, Inc. | Distributed network voting system |
WO2002001849A1 (en) | 2000-06-28 | 2002-01-03 | Sony Corporation | Additional information embedding device and additional information embedding method |
JP3481565B2 (en) * | 2000-07-10 | 2003-12-22 | エヌイーシーコンピュータテクノ株式会社 | Driver's license authenticity check device, automatic cash transaction machine provided with the device, and program recording medium |
EP1173003B1 (en) * | 2000-07-12 | 2009-03-25 | Canon Kabushiki Kaisha | Image processing method and image processing apparatus |
JP2002033902A (en) | 2000-07-18 | 2002-01-31 | Nikon Corp | Image signal processor |
US6671387B1 (en) * | 2000-07-21 | 2003-12-30 | Wen-Hsing Hsu | Watermarking of a digitized image |
US20020034305A1 (en) * | 2000-07-21 | 2002-03-21 | Hideo Noyama | Method and system for issuing service and method and system for providing service |
AU2001277147B2 (en) * | 2000-07-25 | 2006-05-18 | Digimarc Corporation | Authentication watermarks for printed objects and related applications |
AU2001285291A1 (en) * | 2000-08-24 | 2002-03-04 | Digimarc Corporation | Watermarking recursive hashes into frequency domain regions and wavelet based feature modulation watermarks |
JP3918414B2 (en) * | 2000-08-25 | 2007-05-23 | 富士ゼロックス株式会社 | Image data output apparatus and image data output method |
JP3587152B2 (en) * | 2000-09-25 | 2004-11-10 | 日本電気株式会社 | Image transmission system and method, and recording medium |
JP4114032B2 (en) * | 2000-09-26 | 2008-07-09 | セイコーエプソン株式会社 | Personal authentication device |
US6512837B1 (en) * | 2000-10-11 | 2003-01-28 | Digimarc Corporation | Watermarks carrying content dependent signal metrics for detecting and characterizing signal alteration |
JP2002135713A (en) * | 2000-10-26 | 2002-05-10 | Nec Corp | Image data processing device and image data processing method |
KR100548983B1 (en) * | 2000-11-02 | 2006-02-02 | (주)마크텍 | Computer system and method for verifying the authenticity of digital documents |
GB0027581D0 (en) | 2000-11-10 | 2000-12-27 | Rue De Int Ltd | Image output apparatus an method |
US20020064759A1 (en) * | 2000-11-30 | 2002-05-30 | Durbin Duane Milford | Method and system for viewing, altering and archiving digital models of dental structures and computer integrated manufacturing of physical models of dental structures |
US20020072982A1 (en) | 2000-12-12 | 2002-06-13 | Shazam Entertainment Ltd. | Method and system for interacting with a user in an experiential environment |
US6912294B2 (en) | 2000-12-29 | 2005-06-28 | Contentguard Holdings, Inc. | Multi-stage watermarking process and system |
KR20020083851A (en) | 2001-04-30 | 2002-11-04 | 주식회사 마크애니 | Method of protecting and managing digital contents and system for using thereof |
US7536553B2 (en) * | 2001-05-10 | 2009-05-19 | Pitney Bowes Inc. | Method and system for validating a security marking |
US7340076B2 (en) | 2001-05-10 | 2008-03-04 | Digimarc Corporation | Digital watermarks for unmanned vehicle navigation |
US20030039360A1 (en) * | 2001-08-21 | 2003-02-27 | Younis Saed G. | Method and system for restricting mobility using unique encrypted chargers |
US20030089764A1 (en) * | 2001-11-13 | 2003-05-15 | Payformance Corporation | Creating counterfeit-resistant self-authenticating documents using cryptographic and biometric techniques |
US7003669B2 (en) | 2001-12-17 | 2006-02-21 | Monk Bruce C | Document and bearer verification system |
WO2003056499A2 (en) * | 2001-12-24 | 2003-07-10 | Digimarc Id Systems Llc | Pet based multi-multi-layer smart cards |
US7321667B2 (en) | 2002-01-18 | 2008-01-22 | Digimarc Corporation | Data hiding through arrangement of objects |
US7974495B2 (en) | 2002-06-10 | 2011-07-05 | Digimarc Corporation | Identification and protection of video |
US7083090B2 (en) * | 2002-08-09 | 2006-08-01 | Patrick Zuili | Remote portable and universal smartcard authentication and authorization device |
WO2004035321A1 (en) | 2002-10-15 | 2004-04-29 | Digimarc Corporation | Identification document and related methods |
US20040223626A1 (en) | 2003-05-09 | 2004-11-11 | Eastman Kodak Company | Method for embedding spatially variant metadata in imagery |
WO2004102353A2 (en) * | 2003-05-12 | 2004-11-25 | Gtech Rhode Island Corporation | Method and system for authentication |
US20050063027A1 (en) * | 2003-07-17 | 2005-03-24 | Durst Robert T. | Uniquely linking security elements in identification documents |
US8301893B2 (en) | 2003-08-13 | 2012-10-30 | Digimarc Corporation | Detecting media areas likely of hosting watermarks |
US20050288952A1 (en) * | 2004-05-18 | 2005-12-29 | Davis Bruce L | Official documents and methods of issuance |
JP4139382B2 (en) * | 2004-12-28 | 2008-08-27 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Device for authenticating ownership of product / service, method for authenticating ownership of product / service, and program for authenticating ownership of product / service |
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- 2003-10-14 US US10/686,495 patent/US20050160271A9/en not_active Abandoned
- 2003-10-14 MX MXPA05003984A patent/MXPA05003984A/en not_active Application Discontinuation
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- 2003-10-14 CA CA2502232A patent/CA2502232C/en not_active Expired - Lifetime
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CA2502232A1 (en) | 2004-04-29 |
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US20040181671A1 (en) | 2004-09-16 |
US20050160271A9 (en) | 2005-07-21 |
US8059858B2 (en) | 2011-11-15 |
EP1551644A4 (en) | 2008-01-02 |
EP1551644A1 (en) | 2005-07-13 |
WO2004035321A1 (en) | 2004-04-29 |
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