US20030133592A1 - Content objects with computer instructions steganographically encoded therein, and associated methods - Google Patents

Content objects with computer instructions steganographically encoded therein, and associated methods Download PDF

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Publication number
US20030133592A1
US20030133592A1 US10/306,768 US30676802A US2003133592A1 US 20030133592 A1 US20030133592 A1 US 20030133592A1 US 30676802 A US30676802 A US 30676802A US 2003133592 A1 US2003133592 A1 US 2003133592A1
Authority
US
United States
Prior art keywords
computer instructions
instructions
watermark
user
content object
Prior art date
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.)
Abandoned
Application number
US10/306,768
Inventor
Geoffrey Rhoads
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Digimarc Corp
Original Assignee
Digimarc Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from PCT/US1996/006618 external-priority patent/WO1996036163A2/en
Priority claimed from US08/649,419 external-priority patent/US5862260A/en
Priority claimed from US09/186,962 external-priority patent/US7171016B1/en
Application filed by Digimarc Corp filed Critical Digimarc Corp
Priority to US10/306,768 priority Critical patent/US20030133592A1/en
Assigned to DIGIMARC CORPORATION reassignment DIGIMARC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RHOADS, GEOFFREY B.
Publication of US20030133592A1 publication Critical patent/US20030133592A1/en
Priority to US10/658,808 priority patent/US8769297B2/en
Priority to US10/857,266 priority patent/US7760902B2/en
Priority to US12/839,110 priority patent/US8144924B2/en
Abandoned legal-status Critical Current

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Definitions

  • the present application relates to improvements in the field of digital watermarking.
  • references to watermarking encompass not only the assignee's watermarking technology, but can likewise be practiced with any other watermarking technology, such as those indicated above.
  • watermark The physical manifestation of watermarked information most commonly takes the form of altered signal values, such as slightly changed pixel values, picture luminance, picture colors, DCT coefficients, instantaneous audio amplitudes, etc.
  • 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.
  • Watermarks can also be optically implemented in holograms and conventional paper watermarks.) In accordance with the present invention, various improvements to digital watermarking are disclosed.
  • a digitally watermarked object can steganographically convey a payload that includes computer instructions (e.g., JAVA, ActiveX, or HTML) that—when decoded—control some manner of operation of an associated instruction processor.
  • computer instructions e.g., JAVA, ActiveX, or HTML
  • One application is a digital movie that, when doubleclicked, automatically executes a watermark-embedded Java applet which links through a browser to the movie's distributor. The user is then prompted to input a credit card number. After the number has been verified and a charge made, the applet releases the content of the file to the computer's viewer for viewing of the movie.
  • FIGS. 1 - 9 are screen shots associated with an exemplary embodiment of one aspect of the invention.
  • An improvement to existing watermark encoding techniques is to add an iterative assessment of the robustness of the mark, with a corresponding adjustment in a re-watermarking operation.
  • the characteristics of the underlying content may result in some bits being more robustly (e.g. strongly) encoded than others.
  • a watermark is first embedded in an object.
  • a trial decoding operation is performed.
  • a confidence measure e.g. signal-to-noise ratio
  • the bits that appear weakly encoded are identified, and corresponding changes are made to the watermarking parameters to bring up the relative strengths of these bits.
  • the object is then watermarked anew, with the changed parameters. This process can be repeated, as needed, until all of the bits comprising the encoded data are approximately equally detectable from the encoded object, or meet some predetermined signal-to-noise ratio threshold.
  • the portions can take different forms, e.g., rectangular patches in a still or moving image; brief temporal excerpts in audio or video; certain DCT/Fourier/wavelet coefficients (or adjoining groups of coefficients) in coefficient-based representations of the object in a transformed domain, etc.
  • the process is highly automated and essentially transparent to a user.
  • the user simply instructs a computer-controlled system to watermark an object, and the system responds by performing the trial watermarking, decoding, making successive adjustments, and repeating as necessary until a final encoded object meeting desired watermark-quality requirements is produced.
  • a more elaborate embodiment is a batch image processing system (implemented, e.g., in software run on a Pentium III-based personal computer system) that successively opens, watermarks, JPEG-compresses, and re-stores each image in a collection of images.
  • Such systems are well-suited for use by proprietors of large image collections (e.g. news agencies, photo stock houses, etc.).
  • any of the foregoing iterative-encoding techniques can be employed.
  • other iterative encoding techniques can be used.
  • One other such other iterative encoding technique tests a trial encoding against one or more various forms of corruption, and makes adjustments based on the results of the attempted decoding after such corruption(s). The process repeats as necessary.
  • the image is compressed after watermarking. Compression commonly weakens a watermark since some of the watermark signal components are typically attenuated.
  • the watermark can be made more durable by increasing the watermark's energy, but so doing can have the effect of visibly degrading image quality. Thus, a trade-off must be struck between watermark durability and image fidelity.
  • a user-interface associated with the system can allow a user to select one of three watermarking modes: low, medium, and high.
  • low mode image quality is more important than watermark durability.
  • medium mode image quality and watermark durability are about equally important.
  • high mode watermark durability is more important than image quality.
  • a watermark intensity parameter a parameter used by the watermarking algorithm to determine the intensity (e.g. amplitude) of the watermark signal added to the image.
  • the parameter has a value between 1 and 16, with 1 representing the lowest-intensity watermark, and 16 representing the highest-intensity watermark.
  • the actual watermark energy is typically not a linear function of the parameter but can be, e.g., logarithmically related.
  • the user interface can also allow the user to specify the degree of JPEG compression desired (e.g. on an arbitrary low/medium/high, or numerically defined scale), and indicate whether the compression can be adjusted—if necessary—to achieve the desired watermark durability/image quality trade-off.
  • degree of JPEG compression desired e.g. on an arbitrary low/medium/high, or numerically defined scale
  • the system opens the first image file, and sets an initial intensity parameter (i.e. 1 to 16) corresponding to the user's mode selection (low, medium, or high).
  • the resulting watermarked image is then compressed in accordance with the user's instructions.
  • a copy of the compressed file is next made and decompressed.
  • the watermark is then decoded from the decompressed image to check that the watermarked data can be correctly read, and the strength of the watermark signal in the image is assessed.
  • This strength metric (which may be, e.g., signal-to-noise ratio expressed on a 1-10 scale) indicates the observed durability of the watermark. If the correct watermark was read, the strength metric is then compared against a threshold value corresponding to the selected mode of operation. (I.e. if “low” mode is selected, a relatively low threshold is set on detected strength, whereas if “high” mode is selected, a relatively high threshold is set.) If the strength of watermark detected in the decompressed image meets or exceeds the corresponding threshold value, the trial watermarking meets the user's objectives. Thus, the compressed/watermarked image is written to a disk or other output storage device. Another file from the collection is read, and the process repeats.
  • a threshold value corresponding to the selected mode of operation.
  • the system increases the intensity value and watermarks the original image anew.
  • the watermarked image is again compressed, and a copy made and decompressed. Again, the watermark is decoded from the decompressed image to check for accuracy, and the strength of the watermark signal in the image is assessed.
  • the intensity parameter may reach a value at which the image quality suffers unacceptably.
  • the different modes of operation low, medium, and optionally high
  • the system will not further increase the embedded watermark intensity. Instead, it will next adjust the compression (if the user has permitted the system—through the UI—this flexibility).
  • An iterative watermark/compress/decompress/decode procedure thus begins in which the compression is successively backed-off until decoding yields a watermark that meets the readability requirement and strength threshold.
  • the intensity remains fixed at the highest level permitted for that mode while this iterative procedure proceeds.
  • a threshold is set beyond which the degree of compression cannot be lowered (again, for quality concerns). If this threshold is reached, and the decoded watermark still does not meet the readability and strength tests, then the image is set-aside for later manual consideration by the operator, and the process continues anew with the next image. (The same type of exception handling occurs if the user has not permitted the system to adjust the compression, and the strength/readability tests cannot be met with watermark intensity within the permitted range.)
  • processing speed will depend on the size of the increments by which the parameters (e.g. encoding intensity, compression) are successively adjusted.
  • a fine level of granularity is employed (e.g. changing the intensity by a unit value on successive iterations).
  • larger increments are used.
  • binary search-type algorithms can be used to hone-in on a nearly-optimal value in a relatively short time.
  • FIG. 1 shows an initial screen, allowing the user to select between (1) starting the batch embedding; or (2) reviewing exceptions/errors from a previous batch embedding process and taking remedial actions (e.g., per FIG. 9 below).
  • FIG. 2 shows the UI permitting the user to specify the mode of operation desired (i.e., low/medium/high).
  • FIG. 3 shows a UI for selecting the desired degree of compression, which can be specified either as low, medium, or high, or by setting a numerical compression parameter.
  • the UI of FIG. 3 also allows the user to request a warning if the compressed image file is larger than a specified size, and permits the user to specify progressive scans.
  • FIG. 4 shows a UI permitting the user to specify the watermark payload with which the images are to be encoded.
  • the fields are Digimarc ID, Distributor ID, Do Not Copy flag, Restricted Use flag, Adult Content Flag, Copyright Year, Image ID, and Transaction ID.
  • the UI also permits the user to specify that certain IDs are to be incremented for each successive image in the batch.
  • FIG. 5 shows a UI permitting the user to specify the location of images to be processed.
  • the UI optionally allows the user to preview images as part of the process.
  • FIG. 6 shows a UI permitting the user to specify a destination folder for the watermarked images, and output options (e.g. file format).
  • FIG. 7 shows a UI permitting the user to specify error and log file settings (e.g. specifying maximum number of errors before stopping, and maximum consecutive errors before stopping).
  • FIG. 8 shows a UI presenting errors and warnings to a user, e.g., after a batch of image files has been processed. Included with the error listings are files that were not processed (e.g. because they were found to already have a watermark). Included with the warning listings are files whose size, after compression, exceeded the earlier-specified maximum file size (FIG. 3). The UI also permits the user to review all or selected files.
  • FIG. 9 shows a UI that presents an image for review, both after and before encoding/compression, and indicating the size of each image.
  • the screen also includes UI controls permitting the user to adjust the intensity (on the 1 to 16 scale) and the JPEG compression level (either on a low/medium/high scale, or by numerical parameter).
  • the “Next Image” button permits the next image to be displayed and processed.
  • the just-discussed system checked robustness of the watermark against JPEG-distortion (i.e. a lossy compression/decompression process)
  • the same procedure can be adapted to other types of expected distortion. For example, if an image is expected to be printed and then scanned, such distortion might be modeled by down-sampling and blur-filtering. The system can check trial encodings against such distortion, and adjust the intensity (or other parameter) as needed to provide a desired degree of durability against such corruption.
  • performance metrics e.g., accurate decoding, and strength of watermark meeting a threshold
  • different performance metrics can be employed.
  • Other sample metrics include, but are not limited to: speed of watermark decoding being within a threshold; change (i.e. increase or decrease) in bit-rate (e.g. for MPEG video or MP3/MP4 audio) being within a threshold; change in entropy (in the encoded vs. un-encoded object) being within a threshold, etc. (Changes in bit-rate and entropy resulting from watermarking are reviewed, e.g., in WO 99/10837.)
  • the just-described embodiment also included image compression as part of the batch processing.
  • this step could be omitted, and/or other processing steps (e.g. filtering, cropping, format translation, etc.) desired by the user could be included.
  • Watermarking can be applied to myriad forms of information. These include imagery (including video) and audio—whether represented in digital form (e.g. an image comprised of pixels, digital or MPEG video, MP3/MP4 audio, etc.), or in an analog representation (e.g. non-sampled music, printed imagery, banknotes, etc.) Watermarking can be applied to digital content (e.g. imagery, audio) either before or after compression.
  • imagery including video
  • audio whether represented in digital form (e.g. an image comprised of pixels, digital or MPEG video, MP3/MP4 audio, etc.), or in an analog representation (e.g. non-sampled music, printed imagery, banknotes, etc.)
  • digital content e.g. imagery, audio
  • Watermarking can also be used in various “description” or “synthesis” language representations of content, such as Structured Audio, Csound, NetSound, SNHC Audio and the like (cf http://sound.media.mit.edu/mpeg4/) by specifying synthesis commands that generate watermark data as well as the intended audio signal. Watermarking can also be applied to ordinary media, whether or not it conveys information. Examples include paper, plastics, laminates, paper/film emulsions, etc. A watermark can embed a single bit of information, or any number of bits.
  • watermark The physical manifestation of watermarked information most commonly takes the form of altered signal values, such as slightly changed pixel values, picture luminance, picture colors, DCT coefficients, instantaneous audio amplitudes, etc.
  • 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.
  • Watermarks can also be optically implemented in holograms and conventional paper watermarks.
  • One improvement to existing technology is to employ established web crawler services (e.g. AltaVista, Excite, or Inktomi) to search for watermarked content (on the Web, in internet news groups, BBS systems, on-line systems, etc.) in addition to their usual data collecting/indexing operations.
  • Such crawlers can download files that may have embedded watermarks (e.g. *.JPG, *.WAV, etc.) for later analysis. These files can be processed, as described below, in real time. More commonly, such files are queued and processed by a computer distinct from the crawler computer. Instead of performing watermark-read operations on each such file, a screening technique can be employed to identify those most likely to be conveying watermark data.
  • One such technique is to perform a DCT operation on an image, and look for spectral coefficients associated with certain watermarking techniques (e.g. coefficients associated with an inclined embedded subliminal grid).
  • the analyzing computer requires access to the noise signal used to spread the data signal.
  • interested parties submit their noise/key signals to the crawler service so as to enable their marked content to be located.
  • the crawler service maintains such information in confidence, and uses different noise signals in decoding an image (image is used herein as a convenient shorthand for imagery, video, and audio) until watermarked data is found (if present).
  • Another such postulated attack against web crawler detection of image watermarks is to scramble the image (and thus the watermark) in a file, and employ a Java applet or the like to unscramble the image prior to viewing.
  • Existing web crawlers inspect the file as they find it, so the watermark is not detected.
  • the Java de-scrambling applet can be invoked when a user wishes access to a file, the same applet can similarly be employed in a web crawler to overcome such attempted circumvention of watermark detection.
  • a *.JPG file for example, may include pornography, a photo of a sunset, etc.
  • Watermarks can be used to indelibly associate meta-data within content (as opposed to stored in a data structure that forms another part of the object, as is conventionally done with meta-data).
  • the watermark can include text saying “sunset” or the like. More compact information representations can alternatively be employed (e.g. coded references).
  • the watermark can include (or consist entirely of) a Unique ID (UID) that serves as an index (key) into a network-connected remote database containing the meta data descriptors.
  • the remote data may contain meta-data described by an extensible markup language (XML) tag set.
  • watermarks should serve more than as silent copyright notices.
  • One option is to use watermarks to embed “intelligence” in content.
  • One form of intelligence is knowing its “home.” “Home” can be the URL of a site with which the content is associated.
  • a photograph of a car for example, can be watermarked with data identifying the web site of an auto-dealer that published the image. Wherever the image goes, it serves as a link back to the original disseminator.
  • the same technique can be applied to corporate logos. Wherever they are copied on the internet, a suitably-equipped browser or the like can decode the data and link back to the corporation's home page. (Decoding may be effected by positioning the cursor over the logo and pressing the right-mouse button, which opens a window of options—one of which is Decode Watermark.)
  • the intelligence need not be wholly encoded in the content's watermark. Instead, the watermark can again provide a UID—this time identifying a remote database record where the URL of the car dealer, etc., can be retrieved. In this manner, images and the like become marketing agents—linking consumers with vendors (with some visual salesmanship thrown in). In contrast to the copyright paradigm, in which dissemination of imagery was an evil sought to be tracked and stopped, dissemination of the imagery can now be treated as a selling opportunity. A watermarked image becomes a portal to a commercial transaction.
  • an intermediate database between a watermarked content file and its ultimate home serves an important advantage: it allows the disseminator to change the “home” simply by updating a record in the database.
  • the former company's smart images can be made to point to the new company's home web page by updating a database record.
  • the old company's home URL is hard-coded (i.e. watermarked) in the object, it may point to a URL that eventually is abandoned.
  • the intermediate database serves as a switchboard that couples the file to its current home.
  • a printed catalog can include a picture illustrating a jacket. Embedded in the picture is watermarked data. This data can be extracted by a simple hand-scanner/decoder device using straightforward scanning and decoding techniques (e.g. those known to artisans in those fields). In watermark-reading applications employing hand-scanners and the like, it is important that the watermark decoder be robust to rotation of the image, since the catalog photo will likely be scanned off-axis.
  • One option is to encode subliminal graticules (e.g. visualization synchronization codes) in the catalog photo so that the set of image data can be post-processed to restore it to proper alignment prior to decoding.
  • the scanner/decoder device can be coupled to a modem-equipped computer, a telephone, or any other communications device.
  • the device provides URL data to the computer's web browser, linking the browser to the catalog vendor's order page.
  • the vendor's order page can detail the size and color options of the jacket, inventory availability, and solicit ordering instructions (credit card number, delivery options, etc.)—as is conventionally done with on-line merchants.
  • Such a device connected to a telephone can dial the catalog vendor's toll-free automated order-taking telephone number (known, e.g., from data encoded in the watermark), and identify the jacket to the order center.
  • Voice prompts can then solicit the customer's choice of size, color, and delivery options, which are input by Touch Tone instructions, or by voiced words (using known voice recognition software at the vendor facility).
  • the watermark may be conceptualized as an invisible bar code employed in a purchase transaction.
  • the watermark can serve as a seamless interface bridging the print and digital worlds
  • Another way of providing content with intelligence is to use the watermark to provide Java or ActiveX code.
  • the code can be embedded in the content, or can be stored remotely and linked to the content.
  • the code can be executed (either automatically, or at the option of the user). This code can perform virtually any function.
  • One is to “phone home”—initiating a browser and linking to the object's home
  • the object can then relay any manner of data to its home. This data can specify some attribute of the data, or its use.
  • the code can also prevent accessing the underlying content until permission is received.
  • An example is a digital movie that, when double-clicked, automatically executes a watermark-embedded Java applet which links through a browser to the movie's distributor. The user is then prompted to input a credit card number. After the number has been verified and a charge made, the applet releases the content of the file to the computer's viewer for viewing of the movie. Support for these operations is desirably provided via the computer's operating system, or plug-in software.
  • Similar functionality can be provided with an operating system to trigger special treatment of watermarked content, provided the operating system is aware of the content type (e.g. in an object-oriented file system, or in a file system that is “media aware”).
  • One exemplary application is in the acquisition of content from external audio/image/video devices.
  • Such arrangements can also be used to collect user-provided demographic information when smart image content is accessed by the consumer of the content.
  • the demographic information can be written to a remote database and can be used for market research, customization or personalization of information about the content provided to the consumer, sales opportunities, advertising, etc.
  • watermarks can serve to convey related information, such as links to WWW fan sites, actor biographies, advertising for marketing tie-ins (T-shirts, CDs, concert tickets).
  • information such as links to WWW fan sites, actor biographies, advertising for marketing tie-ins (T-shirts, CDs, concert tickets).
  • the logo via some selection device (mouse, remote control button, etc.), the information is revealed to the consumer, who can then interact with it.
  • An exemplary asset management system makes content available (e.g. from a web server, or on a new computer's hard disk) in encrypted form. Associated with the encrypted content is data identifying the content (e.g. a preview) and data specifying various rights associated with the content. If a user wants to make fuller use of the content, the user provides a charge authorization (e.g. a credit card) to the distributor, who then provides a decryption key, allowing access to the content. (Such systems are often realized using object-based technology. In such systems, the content is commonly said to be distributed in a “secure container.”)
  • a charge authorization e.g. a credit card
  • asset management systems deliver content “in the clear”—not encrypted or in a secure container. Such arrangements are common, e.g., in enterprise asset management systems (as opposed, for example, to e-commerce applications where container-based approaches are prevalent).
  • the content should be marked (personalized/serialized) so that any illicit use of the content can be tracked.
  • This marking can be performed with watermarking, which assures that the mark travels with the content wherever—and in whatever form—it may go.
  • the watermarking can be effected by the distributor—prior to dissemination of the (encrypted) object—such as by encoding a UID that is associated in a database with that particular container.
  • the database record can be updated to reflect the purchaser/user, the purchase date, the rights granted, etc.
  • a watermark encoder in the software tool used to access the content (e.g. a decryption engine, for secure container-based systems).
  • Such an encoder can embed watermark data in the content before it is provided to the user (e.g. before it is released from the container, in secure container systems).
  • the embedded data can include a UID, as described above. This UID can be assigned by the distributor prior to disseminating the content/container. Alternatively, the UID can be a data string not known or created until access (or the right to access) has been granted.
  • the watermark can include other data not known to the distributor, e.g. information specific to the time(s) and manner(s) of accessing the content.
  • access rights can again be implemented realized with watermarks.
  • Full resolution images for example, can be freely available on the web. If a user wishes to incorporate the imagery into a web page or a magazine, the user can interrogate the imagery as to its terms and conditions of use. This may entail linking to a web site specified by the embedded watermark (directly, or through an intermediate database), which specifies the desired information. The user can then arrange the necessary payment, and use the image knowing that the necessary rights have been secured.
  • Tagging of image/video/audio assets at the time of their end-user distribution need not consist exclusively of a UID.
  • Other data can also be watermarked into the content, e.g. a serial number, the identity of the recipient, the date of distribution, etc. Additionally, the watermarked data can serve to establish a persistent link to meta-data contained in an associated asset management database.
  • digital watermarks can also be realized using conventional (e.g. paper) watermarking technologies.
  • Known techniques for watermarking media e.g. paper, plastic, polymer
  • U.S. Pat. Nos. 5,536,468, 5,275,870, 4,760,239, 4,256,652, 4,370,200, and 3,985,927 and can be adapted to display of a visual watermark instead of a logo or the like.
  • some forms of traditional watermarks which are designed to be viewed with transmissive light can also show up as low level signals in reflective light, as is typically used in scanners.
  • Transmissive illumination detection systems can also be employed to detect such watermarks, using optoelectronic traditional-watermark detection technologies known in the art.
  • digital watermarks can be realized as part of optical holograms.
  • Known techniques for producing and securely mounting holograms are disclosed in U.S. Pat. Nos. 5,319,475, 5,694,229, 5,492,370, 5,483,363, 5,658,411 and 5,310,222.
  • the watermark can be represented in the image or data model from which the holographic diffraction grating is produced.
  • the hologram is produced as before, and displays an object or symbol.
  • the watermark markings appear in the background of the image so that they can be detected from all viewing angles. In this context, it is not critical that the watermark representation be essentially imperceptible to the viewer. If desired, a fairly visible noise-like pattern can be used without impairing the use to which the hologram is put.
  • Digital watermarks can also be employed in conjunction with labels and tags.
  • other techniques tailored to security—can also be employed.
  • Known techniques useful in producing security labels/tags are disclosed in U.S. Pat. Nos. 5,665,194, 5,732,979, 5,651,615, and 4,268,983.
  • the imperceptibility of watermarked data, and the ease of machine decoding, are some of the benefits associated with watermarked tags/labels. Additionally, the cost is far less than many related technologies (e.g. holograms).
  • Watermarks in this application can be used to authenticate the originality of a product label, either to the merchant or to the consumer of the associated product, using a simple scanner device, thereby reducing the rate of counterfeit product sales.
  • the instantaneous phase of a computer's clock signal is modulated to convey steganographically encoded data.
  • the phase of the clock frequency is instantaneously varied in accordance with the data signal.
  • the data signal needn't reflect modulation with a noise-like carrier signal; the unaltered information signal can be sent.
  • the period of the clock signal is 3 nanoseconds, and the instantaneous phase shifting is on the order of +/ ⁇ 10 picoseconds.
  • phase is advanced 10 picoseconds. If a binary “0” is to be encoded, the phase is retarded 10 picoseconds. Successive clock edges are successively advanced or retarded in accordance with corresponding bits of the data signal until the end of data is reached. Then the data signal desirably repeats, so as to provide redundant encoding.
  • Such modulation of the computer's clock system will be manifested throughout its operation, including in its communication with connected devices.
  • a modem or network connection will convey data that is influenced by the phase modulation of the clock signal.
  • the signal transitions in any such communication e.g. RS-232, TCP/IP, wireless modem broadcasts, etc.
  • any such communication e.g. RS-232, TCP/IP, wireless modem broadcasts, etc.
  • a remote computer that receives information sent by such a computer can examine the timing of the signal (e.g. its edge transitions), and discern thereby the encoded data signal.
  • the channel to the remote computer offers near perfect temporal fidelity (i.e. it introduces essentially no variable delay into the data's propagation)
  • the data can be extracted by simply noting the instantaneous offset of each edge transition from its expected nominal value, and a corresponding element of the data signal is thereby identified. If the data signal was modulated by a noise-like signal, demodulation with the same noise-like signal will provide the original information signal. (No such demodulation with a noise signal is required if the original information signal served as the basis for the clock phase shifting.)
  • the channel to the remote computer introduces temporal distortion.
  • An example is the internet, where different packets may follow different routings between the originating computer and the receiving computer.
  • a large number of data must be collected and processed to extract the data signal.
  • a message of 100 bits might require collection and processing of on the order of a million edge transitions to assure reliable message recovery.
  • this may require only a few seconds of data.
  • the master clock of the computer is controlled by a phase locked loop (PLL) circuit configured as a phase modulator and driven by the data signal.
  • Decoding is performed by another PLL circuit, configured as a phase demodulator.
  • PLL phase locked loop
  • the two PLLs needn't share a common time base, since decoding can proceed by examining deviations of instantaneous edge transitions from the average clock period.
  • the design of such PLL phase modulators and demodulators is within the routine capabilities of an artisan in this field.

Abstract

Various improvements to digital watermarking are disclosed. For example, a digitally watermarked object can steganographically convey a payload that includes computer instructions (e.g., JAVA, ActiveX, or HTML) that—when decoded—control some manner of operation of an associated instruction processor. One application is a digital movie that, when double-clicked, automatically executes a watermark-embedded Java applet which links through a browser to the movie's distributor. The user is then prompted to input a credit card number. After the number has been verified and a charge made, the applet releases the content of the file to the computer's viewer for viewing of the movie.

Description

    RELATED APPLICATION DATA
  • This application is a division of copending application Ser. No. 09/292,569, filed Apr. 15, 1999. [0001]
  • Application Ser. No. 09/292,569 is a continuation-in-part of copending application Ser. No. 09/186,962, filed Nov. 5, 1998, which is a continuation of application Ser. No. 08/649,419, filed May 16, 1996 (now U.S. Pat. No. 5,862,260), which claims priority to application PCT/US96/06618, filed May 7, 1996 (published as WO9636163). [0002]
  • Application Ser. No. 09/292,569 is also a continuation in part of provisional application No. 60/082,228, filed Apr. 16, 1998. [0003]
  • The present application claims priority to, and incorporates by reference, each of these prior applications[0004]
  • FIELD OF THE INVENTION
  • The present application relates to improvements in the field of digital watermarking. [0005]
  • BACKGROUND AND SUMMARY OF THE INVENTION
  • Digital watermarking (“watermarking”) is a quickly growing field of endeavor, with several different approaches. The present assignee's work is reflected in the earlier-cited related applications, as well as in U.S. Pat. Nos. 5,841,978, 5,768,426, 5,748,783, 5,748,763, 5,745,604, 5,710,834, 5,636,292, 5,721,788, and laid-open PCT applications WO97/43736 and WO99/10837 (corresponding to pending U.S. applications 08/746,613 (now U.S. Pat. No. 6,122,403) and Ser. No. 09/138,061 (now U.S. Pat. No. 6,229,924)). Other work is illustrated by U.S. Pat. Nos. 5,734,752, 5,646,997, 5,659,726, 5,664,018, 5,671,277, 5,687,191, 5,687,236, 5,689,587, 5,568,570, 5,572,247, 5,574,962, 5,579,124, 5,581,500, 5,613,004, 5,629,770, 5,461,426, 5,743,631, 5,488,664, 5,530,759, 5,539,735, 4,943,973, 5,337,361, 5,404,160, 5,404,377, 5,315,098, 5,319,735, 5,337,362, 4,972,471, 5,161,210, 5,243,423, 5,091,966, 5,113,437, 4,939,515, 5,374,976, 4,855,827, 4,876,617, 4,939,515, 4,963,998, 4,969,041, and published foreign applications WO 98/02864, EP 822,550, WO 97/39410, WO 96/36163, GB 2,196,167, EP 777,197, EP 736,860, EP 705,025, EP 766,468, EP 782,322, WO 95/20291, WO 96/26494, WO 96/36935, WO 96/42151, WO 97/22206, WO 97/26733. Some of the foregoing patents relate to visible watermarking techniques. Other visible watermarking techniques (e.g. data glyphs) are described in U.S. Pat. Nos. 5,706,364, 5,689,620, 5,684,885, 5,680,223, 5,668,636, 5,640,647, and 5,594,809. [0006]
  • Most of the work in watermarking, however, is not in the patent literature but rather in published research. In addition to the patentees of the foregoing patents, some of the other workers in this field (whose watermark-related writings can by found by an author search in the INSPEC database) include I. Pitas, Eckhard Koch, Jian Zhao, Norishige Morimoto, Laurence Boney, Kineo Matsui, A. Z. Tirkel, Fred Mintzer, B. Macq, Ahmed H. Tewfik, Frederic Jordan, Naohisa Komatsu, and Lawrence O'Gorman. [0007]
  • The artisan is assumed to be familiar with the foregoing prior art. [0008]
  • In the present disclosure it should be understood that references to watermarking encompass not only the assignee's watermarking technology, but can likewise be practiced with any other watermarking technology, such as those indicated above. [0009]
  • The physical manifestation of watermarked information most commonly takes the form of altered signal values, such as slightly changed pixel values, picture luminance, picture colors, DCT coefficients, instantaneous audio amplitudes, 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. Watermarks can also be optically implemented in holograms and conventional paper watermarks.) In accordance with the present invention, various improvements to digital watermarking are disclosed. For example, a digitally watermarked object can steganographically convey a payload that includes computer instructions (e.g., JAVA, ActiveX, or HTML) that—when decoded—control some manner of operation of an associated instruction processor. One application is a digital movie that, when doubleclicked, automatically executes a watermark-embedded Java applet which links through a browser to the movie's distributor. The user is then prompted to input a credit card number. After the number has been verified and a charge made, the applet releases the content of the file to the computer's viewer for viewing of the movie. [0010]
  • The foregoing and other features and advantages of the present invention will be more readily apparent from the following Detailed Description, which proceeds with reference to the accompanying drawings.[0011]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIGS. [0012] 1-9 are screen shots associated with an exemplary embodiment of one aspect of the invention.
  • DETAILED DESCRIPTION
  • An improvement to existing watermark encoding techniques is to add an iterative assessment of the robustness of the mark, with a corresponding adjustment in a re-watermarking operation. Especially when encoding multiple bit watermarks, the characteristics of the underlying content may result in some bits being more robustly (e.g. strongly) encoded than others. In an illustrative technique employing this improvement, a watermark is first embedded in an object. Next, a trial decoding operation is performed. A confidence measure (e.g. signal-to-noise ratio) associated with each bit detected in the decoding operation is then assessed. The bits that appear weakly encoded are identified, and corresponding changes are made to the watermarking parameters to bring up the relative strengths of these bits. The object is then watermarked anew, with the changed parameters. This process can be repeated, as needed, until all of the bits comprising the encoded data are approximately equally detectable from the encoded object, or meet some predetermined signal-to-noise ratio threshold. [0013]
  • While the foregoing analysis evaluated confidence on a per-bit basis, related iterative procedures can evaluate confidence on a per-portion basis. That is, the encoded object is considered in portions, and each portion is analyzed for the robustness of the data encoded thereby. In portions evidencing “weak” encoding, the encoding parameters can be adjusted to strengthen the encoding in one or more subsequent re-encoding operations. [0014]
  • The portions can take different forms, e.g., rectangular patches in a still or moving image; brief temporal excerpts in audio or video; certain DCT/Fourier/wavelet coefficients (or adjoining groups of coefficients) in coefficient-based representations of the object in a transformed domain, etc. [0015]
  • By this technique, even if the encoded object is spatially or temporally excerpted, or filtered (e.g. spectrally), there is increased assurance that the watermark energy remaining after such processing will permit accurate decoding. [0016]
  • In an illustrative embodiment, the process is highly automated and essentially transparent to a user. The user simply instructs a computer-controlled system to watermark an object, and the system responds by performing the trial watermarking, decoding, making successive adjustments, and repeating as necessary until a final encoded object meeting desired watermark-quality requirements is produced. [0017]
  • A more elaborate embodiment is a batch image processing system (implemented, e.g., in software run on a Pentium III-based personal computer system) that successively opens, watermarks, JPEG-compresses, and re-stores each image in a collection of images. Such systems are well-suited for use by proprietors of large image collections (e.g. news agencies, photo stock houses, etc.). [0018]
  • In such systems, any of the foregoing iterative-encoding techniques can be employed. Or other iterative encoding techniques can be used. One other such other iterative encoding technique tests a trial encoding against one or more various forms of corruption, and makes adjustments based on the results of the attempted decoding after such corruption(s). The process repeats as necessary. [0019]
  • In the exemplary system, the image is compressed after watermarking. Compression commonly weakens a watermark since some of the watermark signal components are typically attenuated. The watermark can be made more durable by increasing the watermark's energy, but so doing can have the effect of visibly degrading image quality. Thus, a trade-off must be struck between watermark durability and image fidelity. [0020]
  • A user-interface associated with the system can allow a user to select one of three watermarking modes: low, medium, and high. In the low mode, image quality is more important than watermark durability. (Such encoding is best-suited for applications in which the image is not expected to be corrupted after distribution.) In the medium mode, image quality and watermark durability are about equally important. In the high mode, watermark durability is more important than image quality. [0021]
  • Generally hidden from the user is a watermark intensity parameter—a parameter used by the watermarking algorithm to determine the intensity (e.g. amplitude) of the watermark signal added to the image. In the illustrative system, the parameter has a value between 1 and 16, with 1 representing the lowest-intensity watermark, and 16 representing the highest-intensity watermark. (The actual watermark energy is typically not a linear function of the parameter but can be, e.g., logarithmically related.) [0022]
  • The user interface can also allow the user to specify the degree of JPEG compression desired (e.g. on an arbitrary low/medium/high, or numerically defined scale), and indicate whether the compression can be adjusted—if necessary—to achieve the desired watermark durability/image quality trade-off. [0023]
  • In operation, the system opens the first image file, and sets an initial intensity parameter (i.e. 1 to 16) corresponding to the user's mode selection (low, medium, or high). The resulting watermarked image is then compressed in accordance with the user's instructions. A copy of the compressed file is next made and decompressed. The watermark is then decoded from the decompressed image to check that the watermarked data can be correctly read, and the strength of the watermark signal in the image is assessed. [0024]
  • This strength metric (which may be, e.g., signal-to-noise ratio expressed on a 1-10 scale) indicates the observed durability of the watermark. If the correct watermark was read, the strength metric is then compared against a threshold value corresponding to the selected mode of operation. (I.e. if “low” mode is selected, a relatively low threshold is set on detected strength, whereas if “high” mode is selected, a relatively high threshold is set.) If the strength of watermark detected in the decompressed image meets or exceeds the corresponding threshold value, the trial watermarking meets the user's objectives. Thus, the compressed/watermarked image is written to a disk or other output storage device. Another file from the collection is read, and the process repeats. [0025]
  • If the strength of the watermark detected in the decompressed image does not meet the corresponding threshold value (or if the correct watermark was not read), the system increases the intensity value and watermarks the original image anew. The watermarked image is again compressed, and a copy made and decompressed. Again, the watermark is decoded from the decompressed image to check for accuracy, and the strength of the watermark signal in the image is assessed. [0026]
  • If the correct watermark was read, and the strength metric meets or exceeds the corresponding threshold, the watermarked/compressed image is written to the output storage device, and the process continues with a new image file. [0027]
  • If the strength of the watermark, or its readability, still don't meet spec, the intensity can be increased again and the process repeated anew. However, at some point, the intensity parameter may reach a value at which the image quality suffers unacceptably. Thus, the different modes of operation (low, medium, and optionally high) have corresponding internal intensity threshold values beyond which the system will not increase. If such threshold is reached, the system will not further increase the embedded watermark intensity. Instead, it will next adjust the compression (if the user has permitted the system—through the UI—this flexibility). [0028]
  • By lowering the degree of compression, encoded watermark energy better persists. An iterative watermark/compress/decompress/decode procedure thus begins in which the compression is successively backed-off until decoding yields a watermark that meets the readability requirement and strength threshold. (In an illustrated embodiment, the intensity remains fixed at the highest level permitted for that mode while this iterative procedure proceeds.) In some systems, a threshold is set beyond which the degree of compression cannot be lowered (again, for quality concerns). If this threshold is reached, and the decoded watermark still does not meet the readability and strength tests, then the image is set-aside for later manual consideration by the operator, and the process continues anew with the next image. (The same type of exception handling occurs if the user has not permitted the system to adjust the compression, and the strength/readability tests cannot be met with watermark intensity within the permitted range.) [0029]
  • In these iterative systems, processing speed will depend on the size of the increments by which the parameters (e.g. encoding intensity, compression) are successively adjusted. In some embodiments, a fine level of granularity is employed (e.g. changing the intensity by a unit value on successive iterations). In others, larger increments are used. In still others, binary search-type algorithms can be used to hone-in on a nearly-optimal value in a relatively short time. [0030]
  • The Figures show illustrative screen shots for use in an embodiment implementing certain of the foregoing features. FIG. 1 shows an initial screen, allowing the user to select between (1) starting the batch embedding; or (2) reviewing exceptions/errors from a previous batch embedding process and taking remedial actions (e.g., per FIG. 9 below). FIG. 2 shows the UI permitting the user to specify the mode of operation desired (i.e., low/medium/high). [0031]
  • FIG. 3 shows a UI for selecting the desired degree of compression, which can be specified either as low, medium, or high, or by setting a numerical compression parameter. The UI of FIG. 3 also allows the user to request a warning if the compressed image file is larger than a specified size, and permits the user to specify progressive scans. [0032]
  • FIG. 4 shows a UI permitting the user to specify the watermark payload with which the images are to be encoded. Among the fields are Digimarc ID, Distributor ID, Do Not Copy flag, Restricted Use flag, Adult Content Flag, Copyright Year, Image ID, and Transaction ID. The UI also permits the user to specify that certain IDs are to be incremented for each successive image in the batch. [0033]
  • FIG. 5 shows a UI permitting the user to specify the location of images to be processed. The UI optionally allows the user to preview images as part of the process. [0034]
  • FIG. 6 shows a UI permitting the user to specify a destination folder for the watermarked images, and output options (e.g. file format). [0035]
  • FIG. 7 shows a UI permitting the user to specify error and log file settings (e.g. specifying maximum number of errors before stopping, and maximum consecutive errors before stopping). [0036]
  • FIG. 8 shows a UI presenting errors and warnings to a user, e.g., after a batch of image files has been processed. Included with the error listings are files that were not processed (e.g. because they were found to already have a watermark). Included with the warning listings are files whose size, after compression, exceeded the earlier-specified maximum file size (FIG. 3). The UI also permits the user to review all or selected files. [0037]
  • FIG. 9 shows a UI that presents an image for review, both after and before encoding/compression, and indicating the size of each image. The screen also includes UI controls permitting the user to adjust the intensity (on the 1 to 16 scale) and the JPEG compression level (either on a low/medium/high scale, or by numerical parameter). After the user has made any desired changes, the “Next Image” button permits the next image to be displayed and processed. [0038]
  • (Although the just-described arrangement adjusted the intensity until a threshold was reached, and only then adjusted compression, in other systems this need not be the case. For example, variations in intensity and compression might be alternated until a suitable result is achieved.) [0039]
  • While the just-discussed system checked robustness of the watermark against JPEG-distortion (i.e. a lossy compression/decompression process), the same procedure can be adapted to other types of expected distortion. For example, if an image is expected to be printed and then scanned, such distortion might be modeled by down-sampling and blur-filtering. The system can check trial encodings against such distortion, and adjust the intensity (or other parameter) as needed to provide a desired degree of durability against such corruption. [0040]
  • Likewise, while the just-discussed system checked trial encoding for two performance metrics (e.g., accurate decoding, and strength of watermark meeting a threshold), in other embodiments different performance metrics can be employed. Other sample metrics include, but are not limited to: speed of watermark decoding being within a threshold; change (i.e. increase or decrease) in bit-rate (e.g. for MPEG video or MP3/MP4 audio) being within a threshold; change in entropy (in the encoded vs. un-encoded object) being within a threshold, etc. (Changes in bit-rate and entropy resulting from watermarking are reviewed, e.g., in WO 99/10837.) [0041]
  • In addition to testing for watermark robustness after image compression/decompression, the just-described embodiment also included image compression as part of the batch processing. Of course, this step could be omitted, and/or other processing steps (e.g. filtering, cropping, format translation, etc.) desired by the user could be included. [0042]
  • Watermarking can be applied to myriad forms of information. These include imagery (including video) and audio—whether represented in digital form (e.g. an image comprised of pixels, digital or MPEG video, MP3/MP4 audio, etc.), or in an analog representation (e.g. non-sampled music, printed imagery, banknotes, etc.) Watermarking can be applied to digital content (e.g. imagery, audio) either before or after compression. [0043]
  • Watermarking can also be used in various “description” or “synthesis” language representations of content, such as Structured Audio, Csound, NetSound, SNHC Audio and the like (cf http://sound.media.mit.edu/mpeg4/) by specifying synthesis commands that generate watermark data as well as the intended audio signal. Watermarking can also be applied to ordinary media, whether or not it conveys information. Examples include paper, plastics, laminates, paper/film emulsions, etc. A watermark can embed a single bit of information, or any number of bits. [0044]
  • The physical manifestation of watermarked information most commonly takes the form of altered signal values, such as slightly changed pixel values, picture luminance, picture colors, DCT coefficients, instantaneous audio amplitudes, 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. Watermarks can also be optically implemented in holograms and conventional paper watermarks. [0045]
  • One improvement to existing technology is to employ established web crawler services (e.g. AltaVista, Excite, or Inktomi) to search for watermarked content (on the Web, in internet news groups, BBS systems, on-line systems, etc.) in addition to their usual data collecting/indexing operations. Such crawlers can download files that may have embedded watermarks (e.g. *.JPG, *.WAV, etc.) for later analysis. These files can be processed, as described below, in real time. More commonly, such files are queued and processed by a computer distinct from the crawler computer. Instead of performing watermark-read operations on each such file, a screening technique can be employed to identify those most likely to be conveying watermark data. One such technique is to perform a DCT operation on an image, and look for spectral coefficients associated with certain watermarking techniques (e.g. coefficients associated with an inclined embedded subliminal grid). To decode spread-spectrum based watermarks, the analyzing computer requires access to the noise signal used to spread the data signal. In one embodiment, interested parties submit their noise/key signals to the crawler service so as to enable their marked content to be located. The crawler service maintains such information in confidence, and uses different noise signals in decoding an image (image is used herein as a convenient shorthand for imagery, video, and audio) until watermarked data is found (if present). This allows the use of web crawlers to locate content with privately-coded watermarks, instead of just publicly-coded watermarks, as is presently the case. The queuing of content data for analysis provides certain opportunities for computational shortcuts. For example, like-sized images (e.g. 256×256 pixels) can be tiled into a larger image, and examined as a unit for the presence of watermark data. If the decoding technique (or the optional pre-screening technique) employs a DCT transform or the like, the block size of the transform can be tailored to correspond to the tile size (or some integral fraction thereof). Blocks indicated as likely having watermarks can then be subjected to a full read operation. If the queued data is sorted by file name, file size, or checksum, duplicate files can be identified. Once such duplicates are identified, the analysis computer need consider only one instance of the file. If watermark data is decoded from such a file, the content provider can be informed of each URL at which copies of the file were found. [0046]
  • Some commentators have observed that web crawler-based searches for watermarked images can be defeated by breaking a watermarked image into sub-blocks (tiles). HTML instructions, or the like, cause the sub-blocks to be presented in tiled fashion, recreating the complete image. However, due to the small size of the component sub-blocks, watermark reading is not reliably accomplished. [0047]
  • This attack is overcome by instructing the web-crawler to collect the display instructions (e.g. HTML) by which image files are positioned for display on a web page, in addition to the image files themselves. Before files collected from a web page are scrutinized for watermarks, they can be concatenated in the arrangement specified by the display instructions. By this arrangement, the tiles are reassembled, and the watermark data can be reliably recovered. [0048]
  • Another such postulated attack against web crawler detection of image watermarks is to scramble the image (and thus the watermark) in a file, and employ a Java applet or the like to unscramble the image prior to viewing. Existing web crawlers inspect the file as they find it, so the watermark is not detected. However, just as the Java de-scrambling applet can be invoked when a user wishes access to a file, the same applet can similarly be employed in a web crawler to overcome such attempted circumvention of watermark detection. [0049]
  • Although “content” can be located and indexed by various web crawlers, the contents of the “content” are unknown. A *.JPG file, for example, may include pornography, a photo of a sunset, etc. [0050]
  • Watermarks can be used to indelibly associate meta-data within content (as opposed to stored in a data structure that forms another part of the object, as is conventionally done with meta-data). The watermark can include text saying “sunset” or the like. More compact information representations can alternatively be employed (e.g. coded references). Still further, the watermark can include (or consist entirely of) a Unique ID (UID) that serves as an index (key) into a network-connected remote database containing the meta data descriptors. The remote data may contain meta-data described by an extensible markup language (XML) tag set. By such arrangements, web crawlers and the like can extract and index the meta-data descriptor tags, allowing searches to be conducted based on semantic descriptions of the file contents, rather than just by file name. [0051]
  • Existing watermarks commonly embed information serving to communicate copyright information. Some systems embed text identifying the copyright holder. Others embed a UID which is used as an index into a database where the name of the copyright owner, and associated information, is stored. [0052]
  • Looking ahead, watermarks should serve more than as silent copyright notices. One option is to use watermarks to embed “intelligence” in content. One form of intelligence is knowing its “home.” “Home” can be the URL of a site with which the content is associated. A photograph of a car, for example, can be watermarked with data identifying the web site of an auto-dealer that published the image. Wherever the image goes, it serves as a link back to the original disseminator. The same technique can be applied to corporate logos. Wherever they are copied on the internet, a suitably-equipped browser or the like can decode the data and link back to the corporation's home page. (Decoding may be effected by positioning the cursor over the logo and pressing the right-mouse button, which opens a window of options—one of which is Decode Watermark.) [0053]
  • To reduce the data load of the watermark, the intelligence need not be wholly encoded in the content's watermark. Instead, the watermark can again provide a UID—this time identifying a remote database record where the URL of the car dealer, etc., can be retrieved. In this manner, images and the like become marketing agents—linking consumers with vendors (with some visual salesmanship thrown in). In contrast to the copyright paradigm, in which dissemination of imagery was an evil sought to be tracked and stopped, dissemination of the imagery can now be treated as a selling opportunity. A watermarked image becomes a portal to a commercial transaction. [0054]
  • (Using an intermediate database between a watermarked content file and its ultimate home (i.e. indirect linking) serves an important advantage: it allows the disseminator to change the “home” simply by updating a record in the database. Thus, for example, if one company is acquired by another, the former company's smart images can be made to point to the new company's home web page by updating a database record. In contrast, if the old company's home URL is hard-coded (i.e. watermarked) in the object, it may point to a URL that eventually is abandoned. In this sense, the intermediate database serves as a switchboard that couples the file to its current home. [0055]
  • The foregoing techniques are not limited to digital content files. The same approach is equally applicable with printed imagery, etc. A printed catalog, for example, can include a picture illustrating a jacket. Embedded in the picture is watermarked data. This data can be extracted by a simple hand-scanner/decoder device using straightforward scanning and decoding techniques (e.g. those known to artisans in those fields). In watermark-reading applications employing hand-scanners and the like, it is important that the watermark decoder be robust to rotation of the image, since the catalog photo will likely be scanned off-axis. One option is to encode subliminal graticules (e.g. visualization synchronization codes) in the catalog photo so that the set of image data can be post-processed to restore it to proper alignment prior to decoding. [0056]
  • The scanner/decoder device can be coupled to a modem-equipped computer, a telephone, or any other communications device. In the former instance, the device provides URL data to the computer's web browser, linking the browser to the catalog vendor's order page. (The device need not include its own watermark decoder; this task can be performed by the computer.) The vendor's order page can detail the size and color options of the jacket, inventory availability, and solicit ordering instructions (credit card number, delivery options, etc.)—as is conventionally done with on-line merchants. Such a device connected to a telephone can dial the catalog vendor's toll-free automated order-taking telephone number (known, e.g., from data encoded in the watermark), and identify the jacket to the order center. Voice prompts can then solicit the customer's choice of size, color, and delivery options, which are input by Touch Tone instructions, or by voiced words (using known voice recognition software at the vendor facility). [0057]
  • In such applications, the watermark may be conceptualized as an invisible bar code employed in a purchase transaction. Here, as elsewhere, the watermark can serve as a seamless interface bridging the print and digital worlds Another way of providing content with intelligence is to use the watermark to provide Java or ActiveX code. The code can be embedded in the content, or can be stored remotely and linked to the content. When the watermarked object is activated, the code can be executed (either automatically, or at the option of the user). This code can perform virtually any function. One is to “phone home”—initiating a browser and linking to the object's home The object can then relay any manner of data to its home. This data can specify some attribute of the data, or its use. The code can also prevent accessing the underlying content until permission is received. An example is a digital movie that, when double-clicked, automatically executes a watermark-embedded Java applet which links through a browser to the movie's distributor. The user is then prompted to input a credit card number. After the number has been verified and a charge made, the applet releases the content of the file to the computer's viewer for viewing of the movie. Support for these operations is desirably provided via the computer's operating system, or plug-in software. [0058]
  • Similar functionality can be provided with an operating system to trigger special treatment of watermarked content, provided the operating system is aware of the content type (e.g. in an object-oriented file system, or in a file system that is “media aware”). One exemplary application is in the acquisition of content from external audio/image/video devices. [0059]
  • Such arrangements can also be used to collect user-provided demographic information when smart image content is accessed by the consumer of the content. The demographic information can be written to a remote database and can be used for market research, customization or personalization of information about the content provided to the consumer, sales opportunities, advertising, etc. [0060]
  • In audio and video and the like, watermarks can serve to convey related information, such as links to WWW fan sites, actor biographies, advertising for marketing tie-ins (T-shirts, CDs, concert tickets). In such applications, it is desirable (but not necessary) to display on the user interface (e.g. screen) a small logo to signal the presence of additional information. When the consumer selects the logo via some selection device (mouse, remote control button, etc.), the information is revealed to the consumer, who can then interact with it. [0061]
  • Much has been written (and patented) on the topic of asset rights management. Sample patent documents include U.S. Pat. Nos. 5,715,403, 5,638,443, 5,634,012, 5,629,980. Again, much of the technical work is memorialized in journal articles, which can be identified by searching for relevant company names and trademarks such as IBM's Cryptolope system, Portland Software's ZipLock system, the Rights Exchange service by Softbank Net Solutions, and the DigiBox system from InterTrust Technologies. [0062]
  • An exemplary asset management system makes content available (e.g. from a web server, or on a new computer's hard disk) in encrypted form. Associated with the encrypted content is data identifying the content (e.g. a preview) and data specifying various rights associated with the content. If a user wants to make fuller use of the content, the user provides a charge authorization (e.g. a credit card) to the distributor, who then provides a decryption key, allowing access to the content. (Such systems are often realized using object-based technology. In such systems, the content is commonly said to be distributed in a “secure container.”) [0063]
  • Other asset management systems deliver content “in the clear”—not encrypted or in a secure container. Such arrangements are common, e.g., in enterprise asset management systems (as opposed, for example, to e-commerce applications where container-based approaches are prevalent). [0064]
  • Desirably, the content should be marked (personalized/serialized) so that any illicit use of the content can be tracked. This marking can be performed with watermarking, which assures that the mark travels with the content wherever—and in whatever form—it may go. The watermarking can be effected by the distributor—prior to dissemination of the (encrypted) object—such as by encoding a UID that is associated in a database with that particular container. When access is provided to the content (e.g. an access right is granted to a secure container, or non-encrypted content is made available to a user), the database record can be updated to reflect the purchaser/user, the purchase date, the rights granted, etc. An alternative is to include a watermark encoder in the software tool used to access the content (e.g. a decryption engine, for secure container-based systems). Such an encoder can embed watermark data in the content before it is provided to the user (e.g. before it is released from the container, in secure container systems). The embedded data can include a UID, as described above. This UID can be assigned by the distributor prior to disseminating the content/container. Alternatively, the UID can be a data string not known or created until access (or the right to access) has been granted. In addition to the UID, the watermark can include other data not known to the distributor, e.g. information specific to the time(s) and manner(s) of accessing the content. [0065]
  • In still other non-container-based systems, access rights can again be implemented realized with watermarks. Full resolution images, for example, can be freely available on the web. If a user wishes to incorporate the imagery into a web page or a magazine, the user can interrogate the imagery as to its terms and conditions of use. This may entail linking to a web site specified by the embedded watermark (directly, or through an intermediate database), which specifies the desired information. The user can then arrange the necessary payment, and use the image knowing that the necessary rights have been secured. [0066]
  • Tagging of image/video/audio assets at the time of their end-user distribution (e.g. from a managed content repository) need not consist exclusively of a UID. Other data can also be watermarked into the content, e.g. a serial number, the identity of the recipient, the date of distribution, etc. Additionally, the watermarked data can serve to establish a persistent link to meta-data contained in an associated asset management database. [0067]
  • As noted, digital watermarks can also be realized using conventional (e.g. paper) watermarking technologies. Known techniques for watermarking media (e.g. paper, plastic, polymer) are disclosed in U.S. Pat. Nos. 5,536,468, 5,275,870, 4,760,239, 4,256,652, 4,370,200, and 3,985,927 and can be adapted to display of a visual watermark instead of a logo or the like. Note that some forms of traditional watermarks which are designed to be viewed with transmissive light can also show up as low level signals in reflective light, as is typically used in scanners. Transmissive illumination detection systems can also be employed to detect such watermarks, using optoelectronic traditional-watermark detection technologies known in the art. [0068]
  • As also noted, digital watermarks can be realized as part of optical holograms. Known techniques for producing and securely mounting holograms are disclosed in U.S. Pat. Nos. 5,319,475, 5,694,229, 5,492,370, 5,483,363, 5,658,411 and 5,310,222. To watermark a hologram, the watermark can be represented in the image or data model from which the holographic diffraction grating is produced. In one embodiment, the hologram is produced as before, and displays an object or symbol. The watermark markings appear in the background of the image so that they can be detected from all viewing angles. In this context, it is not critical that the watermark representation be essentially imperceptible to the viewer. If desired, a fairly visible noise-like pattern can be used without impairing the use to which the hologram is put. [0069]
  • Digital watermarks can also be employed in conjunction with labels and tags. In addition to conventional label/tag printing processes, other techniques—tailored to security—can also be employed. Known techniques useful in producing security labels/tags are disclosed in U.S. Pat. Nos. 5,665,194, 5,732,979, 5,651,615, and 4,268,983. The imperceptibility of watermarked data, and the ease of machine decoding, are some of the benefits associated with watermarked tags/labels. Additionally, the cost is far less than many related technologies (e.g. holograms). Watermarks in this application can be used to authenticate the originality of a product label, either to the merchant or to the consumer of the associated product, using a simple scanner device, thereby reducing the rate of counterfeit product sales. [0070]
  • Conveniently ignoring for the time being the inevitable social ramifications of the following apparatus, consider a steganographic setup whereby a given computing system which is based on a “master clock” driving function can, with a small modification, impress a signal upon its electrical operations that could uniquely identify the computing system when that system communicates digitally with a second computing system. The slight modification referred to would be such that it would not interfere at all with the basic operation of the first computing system, nor interfere with the communications between the two systems. [0071]
  • The social ramifications referred to allude to the idea that there still exists the notion of pure anonymity within an internet context and the associated idea of the right to privacy. The “good” of this notion seems to be that non-anonymity can be the seed for exploitation, while the “bad” of this notion seems to be an illusory escape from responsibility for one's own actions. Be this as it all may, there still seems to be ground for the socially neutral concept of simply identifying a given physical object relative to its neighbors, hence the following approach to impressing a unique signal onto a computing system such that a second system in communication with the first can identify the first. [0072]
  • Using spread spectrum principles (e.g. where a “noise like” carrier signal is modulated by an information signal to yield a data signal), the instantaneous phase of a computer's clock signal is modulated to convey steganographically encoded data. In one embodiment, the phase of the clock frequency is instantaneously varied in accordance with the data signal. (In some embodiments, the data signal needn't reflect modulation with a noise-like carrier signal; the unaltered information signal can be sent.) In an illustrative system, the period of the clock signal is 3 nanoseconds, and the instantaneous phase shifting is on the order of +/−10 picoseconds. (These figures will, of course, depend on the particular microprocessor used, and its tolerance for phase noise while still performing within specification.) If a binary “1” is to be encoded, the phase is advanced 10 picoseconds. If a binary “0” is to be encoded, the phase is retarded 10 picoseconds. Successive clock edges are successively advanced or retarded in accordance with corresponding bits of the data signal until the end of data is reached. Then the data signal desirably repeats, so as to provide redundant encoding. [0073]
  • Such modulation of the computer's clock system will be manifested throughout its operation, including in its communication with connected devices. Thus, for example, a modem or network connection will convey data that is influenced by the phase modulation of the clock signal. In particular, the signal transitions in any such communication (e.g. RS-232, TCP/IP, wireless modem broadcasts, etc.) will not occur on uniformly-spaced clock edges, but instead will occur on clock edges whose exact temporal characteristics vary slightly in accordance with the data signal with which the clock has been modulated. [0074]
  • A remote computer that receives information sent by such a computer can examine the timing of the signal (e.g. its edge transitions), and discern thereby the encoded data signal. [0075]
  • If the channel to the remote computer offers near perfect temporal fidelity (i.e. it introduces essentially no variable delay into the data's propagation), the data can be extracted by simply noting the instantaneous offset of each edge transition from its expected nominal value, and a corresponding element of the data signal is thereby identified. If the data signal was modulated by a noise-like signal, demodulation with the same noise-like signal will provide the original information signal. (No such demodulation with a noise signal is required if the original information signal served as the basis for the clock phase shifting.) [0076]
  • More typically, the channel to the remote computer introduces temporal distortion. An example is the internet, where different packets may follow different routings between the originating computer and the receiving computer. In such environments, a large number of data must be collected and processed to extract the data signal. For example, it may be necessary to average, or otherwise process, thousands of edge transitions corresponding to a given bit in order to determine whether the edge was advanced or retarded, and thereby decode that bit with a high degree of statistical assurance. Thus, in environments with highly variable transmission latencies (e.g. the cited internet example), a message of 100 bits might require collection and processing of on the order of a million edge transitions to assure reliable message recovery. However, given the acceleration of data rates on the internet, this may require only a few seconds of data. [0077]
  • In an illustrative embodiment, the master clock of the computer is controlled by a phase locked loop (PLL) circuit configured as a phase modulator and driven by the data signal. Decoding is performed by another PLL circuit, configured as a phase demodulator. (The two PLLs needn't share a common time base, since decoding can proceed by examining deviations of instantaneous edge transitions from the average clock period.) The design of such PLL phase modulators and demodulators is within the routine capabilities of an artisan in this field. [0078]
  • Of course, the artisan will recognize that implementations not employing PLLs can readily be devised (e.g. employing other known phase shifting/modulating techniques, delay circuits, etc.) To provide a comprehensive disclosure without unduly lengthening this specification, applicant incorporates by reference the disclosures of the patents, laid-open international applications, and commonly-owned U.S. applications cited herein. [0079]
  • Having described and illustrated a number of improvements to the field of digital watermarking in particular contexts, it will be recognized that the invention is not so limited. Instead, I claim as my invention all such embodiments as come within the scope and spirit of the following claims, and equivalents thereto. [0080]

Claims (19)

I claim:
1. In a method of steganographically encoding a content object to include auxiliary information, an improvement wherein the auxiliary information comprises computer instructions.
2. The method of claim 1 wherein said computer instructions cause a processor acting thereon to establish an internet link.
3. The method of claim 1 wherein the computer instructions comprise JAVA instructions.
4. The method of claim 1 wherein the computer instructions comprise ActiveX instructions.
5. The method of claim 1 wherein the computer instructions comprise HTML rendering instructions.
6. In a method of processing a content object to decode auxiliary information steganographically encoded therein, an improvement wherein the auxiliary information comprises computer instructions, and the method includes providing said computer instructions to an instruction processor, and performing said instructions using said processor.
7. The method of claim 6 in which said instructions cause the processor to establish an internet link.
8. The method of claim 7 that includes logging information at a remote site using data transmitted using said link.
9. The method of claim 7 that includes presenting to a user a graphical interface soliciting a payment associated with the content object.
10. The method of claim 9 that includes rendering the content object for the user after the user has effected said payment.
11. The method of claim 6 wherein said computer instructions are not performed by the processor until after the user has performed a user's double-click action related to the content object.
12. The method of claim 6 wherein the computer instructions comprise JAVA instructions.
13. The method of claim 6 wherein the computer instructions comprise ActiveX instructions.
14. The method of claim 6 wherein the computer instructions comprise HTML rendering instructions.
15. A storage medium having stored thereon a content object having computer instructions steganographically encoded therein.
16. The storage medium of claim 15 wherein said content object comprises image data.
17. The storage medium of claim 16 wherein said content object comprises video data.
18. The storage medium of claim 15 wherein said content object comprises a collection of individual objects, and the computer instructions specify how the individual objects are to be collectively rendered.
19. The storage medium of claim 18 wherein the individual objects comprise images, and the computer instructions include layout instructions and text with which the images are to be collectively rendered.
US10/306,768 1995-05-08 2002-11-26 Content objects with computer instructions steganographically encoded therein, and associated methods Abandoned US20030133592A1 (en)

Priority Applications (4)

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US10/857,266 US7760902B2 (en) 1995-05-08 2004-05-28 Content objects with computer instructions steganographically encoded therein, and associated methods
US12/839,110 US8144924B2 (en) 1995-05-08 2010-07-19 Content objects with computer instructions steganographically encoded therein, and associated methods

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US08/649,419 US5862260A (en) 1993-11-18 1996-05-16 Methods for surveying dissemination of proprietary empirical data
US8222898P 1998-04-16 1998-04-16
US09/186,962 US7171016B1 (en) 1993-11-18 1998-11-05 Method for monitoring internet dissemination of image, video and/or audio files
US29256999A 1999-04-15 1999-04-15
US10/306,768 US20030133592A1 (en) 1996-05-07 2002-11-26 Content objects with computer instructions steganographically encoded therein, and associated methods

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US11/846,449 Expired - Fee Related US7796826B2 (en) 1996-05-07 2007-08-28 Digital watermarks
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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050159903A1 (en) * 2004-01-21 2005-07-21 Takashi Ogura Radiographic apparatus, and control method and program thereof
US20060163354A1 (en) * 2005-01-21 2006-07-27 Tyranski Robert P System and method of product identification, authentication and verification
US20080140623A1 (en) * 2006-12-11 2008-06-12 Microsoft Corporation Recursive reporting via a spreadsheet
US20090256972A1 (en) * 2008-04-11 2009-10-15 Arun Ramaswamy Methods and apparatus to generate and use content-aware watermarks
US8051169B2 (en) 2000-03-18 2011-11-01 Digimarc Corporation Methods and systems useful in linking from objects to remote resources
US8051294B2 (en) 1993-11-18 2011-11-01 Digimarc Corporation Methods for audio watermarking and decoding
US8059860B2 (en) 1998-04-16 2011-11-15 Brundage Trent J Steganographic encoding
US8126272B2 (en) 2000-05-02 2012-02-28 Digimarc Corporation Methods combining multiple frames of image data
US8144924B2 (en) 1995-05-08 2012-03-27 Digimarc Corporation Content objects with computer instructions steganographically encoded therein, and associated methods
US8175329B2 (en) 2000-04-17 2012-05-08 Digimarc Corporation Authentication of physical and electronic media objects using digital watermarks
US8280101B2 (en) 1995-08-09 2012-10-02 Digimarc Corporation Identification documents and authentication of such documents
US8312168B2 (en) 2000-03-18 2012-11-13 Digimarc Corporation Methods for linking from objects to remote resources
US8355514B2 (en) 1993-11-18 2013-01-15 Digimarc Corporation Audio encoding to convey auxiliary information, and media embodying same
US8515121B2 (en) 2002-01-18 2013-08-20 Digimarc Corporation Arrangement of objects in images or graphics to convey a machine-readable signal
WO2015108774A1 (en) * 2014-01-15 2015-07-23 Cisco Technology, Inc. Tracking and tracing information theft from information systems

Families Citing this family (71)

* Cited by examiner, † Cited by third party
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
US5768426A (en) 1993-11-18 1998-06-16 Digimarc Corporation Graphics processing system employing embedded code signals
US8505108B2 (en) 1993-11-18 2013-08-06 Digimarc Corporation Authentication using a digital watermark
US6345104B1 (en) 1994-03-17 2002-02-05 Digimarc Corporation Digital watermarks and methods for security documents
US7676059B2 (en) 1994-10-21 2010-03-09 Digimarc Corporation Video steganography or encoding
US6944298B1 (en) 1993-11-18 2005-09-13 Digimare Corporation Steganographic encoding and decoding of auxiliary codes in media signals
US5841978A (en) 1993-11-18 1998-11-24 Digimarc Corporation Network linking method using steganographically embedded data objects
US8144368B2 (en) 1998-01-20 2012-03-27 Digimarc Coporation Automated methods for distinguishing copies from original printed objects
US8094949B1 (en) 1994-10-21 2012-01-10 Digimarc Corporation Music methods and systems
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
US6728390B2 (en) 1995-05-08 2004-04-27 Digimarc Corporation Methods and systems using multiple watermarks
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
US9630443B2 (en) 1995-07-27 2017-04-25 Digimarc Corporation Printer driver separately applying watermark and information
US6408331B1 (en) 1995-07-27 2002-06-18 Digimarc Corporation Computer linking methods using encoded graphics
US7006661B2 (en) 1995-07-27 2006-02-28 Digimarc Corp Digital watermarking systems and methods
US6577746B1 (en) 1999-12-28 2003-06-10 Digimarc Corporation Watermark-based object linking and embedding
US7562392B1 (en) * 1999-05-19 2009-07-14 Digimarc Corporation Methods of interacting with audio and ambient music
US7602940B2 (en) 1998-04-16 2009-10-13 Digimarc Corporation Steganographic data hiding using a device clock
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
US8645838B2 (en) 1998-10-01 2014-02-04 Digimarc Corporation Method for enhancing content using persistent content identification
US8290202B2 (en) 1998-11-03 2012-10-16 Digimarc Corporation Methods utilizing steganography
US8874244B2 (en) 1999-05-19 2014-10-28 Digimarc Corporation Methods and systems employing digital content
US8447067B2 (en) 1999-05-19 2013-05-21 Digimarc Corporation Location-based arrangements employing mobile devices
US7142691B2 (en) 2000-03-18 2006-11-28 Digimarc Corporation Watermark embedding functions in rendering description files
US7913095B2 (en) * 2000-08-28 2011-03-22 Contentguard Holdings, Inc. Method and apparatus for providing a specific user interface in a system for managing content
US7246239B2 (en) 2001-01-24 2007-07-17 Digimarc Corporation Digital watermarks for checking authenticity of printed 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
US7974495B2 (en) 2002-06-10 2011-07-05 Digimarc Corporation Identification and protection of video
WO2004035321A1 (en) 2002-10-15 2004-04-29 Digimarc Corporation Identification document and related methods
US7352878B2 (en) * 2003-04-15 2008-04-01 Digimarc Corporation Human perceptual model applied to rendering of watermarked signals
US8301893B2 (en) 2003-08-13 2012-10-30 Digimarc Corporation Detecting media areas likely of hosting watermarks
US20050112320A1 (en) 2003-11-20 2005-05-26 Wright Jeffery J. Carpet structure with plastomeric foam backing
WO2007110806A2 (en) * 2006-03-24 2007-10-04 Koninklijke Philips Electronics N.V. Method of locating a receiver that redistributes content
US8315424B2 (en) * 2007-03-19 2012-11-20 Ricoh Company, Ltd. Image processing apparatus, image processing method, and program product
US8199969B2 (en) 2008-12-17 2012-06-12 Digimarc Corporation Out of phase digital watermarking in two chrominance directions
US9117268B2 (en) * 2008-12-17 2015-08-25 Digimarc Corporation Out of phase digital watermarking in two chrominance directions
US9008315B2 (en) 2012-01-20 2015-04-14 Digimarc Corporation Shared secret arrangements and optical data transfer
US9218530B2 (en) 2010-11-04 2015-12-22 Digimarc Corporation Smartphone-based methods and systems
US8819172B2 (en) 2010-11-04 2014-08-26 Digimarc Corporation Smartphone-based methods and systems
JP5864437B2 (en) 2010-01-15 2016-02-17 ディジマーク コーポレイション Method and configuration for signal rich art
US10664940B2 (en) 2010-03-05 2020-05-26 Digimarc Corporation Signal encoding to reduce perceptibility of changes over time
US8971567B2 (en) 2010-03-05 2015-03-03 Digimarc Corporation Reducing watermark perceptibility and extending detection distortion tolerances
US8477990B2 (en) 2010-03-05 2013-07-02 Digimarc Corporation Reducing watermark perceptibility and extending detection distortion tolerances
WO2011121927A1 (en) * 2010-03-31 2011-10-06 日本電気株式会社 System, device, program, and method for digital content management
US8762852B2 (en) 2010-11-04 2014-06-24 Digimarc Corporation Smartphone-based methods and systems
KR20130020072A (en) * 2011-08-18 2013-02-27 삼성전자주식회사 Image forming apparatus and control method thereof
CN103918247B (en) 2011-09-23 2016-08-24 数字标记公司 Intelligent mobile phone sensor logic based on background environment
WO2013109934A1 (en) 2012-01-20 2013-07-25 Digimarc Corporation Shared secret arrangements and optical data transfer
CN104412609A (en) * 2012-07-05 2015-03-11 Lg电子株式会社 Method and apparatus for processing digital service signals
US9269034B2 (en) 2012-08-21 2016-02-23 Empire Technology Development Llc Orthogonal encoding for tags
US9305559B2 (en) 2012-10-15 2016-04-05 Digimarc Corporation Audio watermark encoding with reversing polarity and pairwise embedding
US9401153B2 (en) 2012-10-15 2016-07-26 Digimarc Corporation Multi-mode audio recognition and auxiliary data encoding and decoding
US9311639B2 (en) 2014-02-11 2016-04-12 Digimarc Corporation Methods, apparatus and arrangements for device to device communication
US10019590B2 (en) 2014-09-22 2018-07-10 Azoteq (Pty) Ltd Secure mobile phone document storage application
US9716807B2 (en) 2014-10-13 2017-07-25 Digimarc Corporation Methods for estimating watermark signal strength, an embedding process using the same, and related arrangements
US10043527B1 (en) 2015-07-17 2018-08-07 Digimarc Corporation Human auditory system modeling with masking energy adaptation
US10217182B1 (en) 2015-10-29 2019-02-26 Digimarc Corporation Construction of signal maps for images with encoded signals
US10262176B1 (en) 2016-02-23 2019-04-16 Digimarc Corporation Scanner with control logic for resolving package labeling
US10198782B1 (en) 2016-09-15 2019-02-05 Digimarc Corporation Detecting conflicts between multiple different encoded signals within imagery
US11057685B2 (en) * 2018-03-29 2021-07-06 Ncr Corporation Media content proof of play over optical medium
US10880451B2 (en) 2018-06-08 2020-12-29 Digimarc Corporation Aggregating detectability metrics to determine signal robustness
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
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
US11734784B2 (en) * 2019-11-14 2023-08-22 Sony Interactive Entertainment Inc. Metadata watermarking for ‘nested spectating’
KR102337673B1 (en) 2020-07-16 2021-12-09 (주)휴먼스케이프 System for verifying data access and Method thereof
KR102337677B1 (en) 2020-07-16 2021-12-09 (주)휴먼스케이프 System for embedding digital verification fingerprint and Method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5710834A (en) * 1995-05-08 1998-01-20 Digimarc Corporation Method and apparatus responsive to a code signal conveyed through a graphic image
US6282362B1 (en) * 1995-11-07 2001-08-28 Trimble Navigation Limited Geographical position/image digital recording and display system

Family Cites Families (249)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630525A (en) 1951-05-25 1953-03-03 Musicast Inc System for transmitting and receiving coded entertainment programs
US3984624A (en) 1974-07-25 1976-10-05 Weston Instruments, Inc. Video system for conveying digital and analog information
US4313197A (en) 1980-04-09 1982-01-26 Bell Telephone Laboratories, Incorporated Spread spectrum arrangement for (de)multiplexing speech signals and nonspeech signals
US4807031A (en) 1987-10-20 1989-02-21 Interactive Systems, Incorporated Interactive video method and apparatus
GB8809346D0 (en) * 1988-04-20 1988-05-25 Emi Plc Thorn Improvements relating to marked recorded signals
US4920503A (en) * 1988-05-27 1990-04-24 Pc Connection, Inc. Computer remote control through a video signal
US5213337A (en) 1988-07-06 1993-05-25 Robert Sherman System for communication using a broadcast audio signal
US4969041A (en) * 1988-09-23 1990-11-06 Dubner Computer Systems, Inc. Embedment of data in a video signal
NL8901032A (en) 1988-11-10 1990-06-01 Philips Nv CODER FOR INCLUDING ADDITIONAL INFORMATION IN A DIGITAL AUDIO SIGNAL WITH A PREFERRED FORMAT, A DECODER FOR DERIVING THIS ADDITIONAL INFORMATION FROM THIS DIGITAL SIGNAL, AN APPARATUS FOR RECORDING A DIGITAL SIGNAL ON A CODE OF RECORD. OBTAINED A RECORD CARRIER WITH THIS DEVICE.
US4943973A (en) 1989-03-31 1990-07-24 At&T Company Spread-spectrum identification signal for communications system
CA2039652C (en) 1990-05-30 1996-12-24 Frank Zdybel, Jr. Hardcopy lossless data storage and communications for electronic document processing systems
EP0493091A1 (en) 1990-12-27 1992-07-01 Xerox Corporation Method and system for embedding machine readable digital data in grayscale images
US5200822A (en) 1991-04-23 1993-04-06 National Broadcasting Company, Inc. Arrangement for and method of processing data, especially for identifying and verifying airing of television broadcast programs
FR2681997A1 (en) 1991-09-30 1993-04-02 Arbitron Cy METHOD AND DEVICE FOR AUTOMATICALLY IDENTIFYING A PROGRAM COMPRISING A SOUND SIGNAL
US5243423A (en) 1991-12-20 1993-09-07 A. C. Nielsen Company Spread spectrum digital data transmission over TV video
US5721788A (en) 1992-07-31 1998-02-24 Corbis Corporation Method and system for digital image signatures
NZ259776A (en) 1992-11-16 1997-06-24 Ceridian Corp Identifying recorded or broadcast audio signals by mixing with encoded signal derived from code signal modulated by narrower bandwidth identification signal
US5448053A (en) * 1993-03-01 1995-09-05 Rhoads; Geoffrey B. Method and apparatus for wide field distortion-compensated imaging
US6973669B2 (en) 1993-03-29 2005-12-06 Microsoft Corporation Pausing television programming in response to selection of hypertext link
DE69417661T2 (en) 1993-09-03 1999-11-11 Toshiba Kawasaki Kk Device for the steganographic insertion of information into color images
US5481294A (en) 1993-10-27 1996-01-02 A. C. Nielsen Company Audience measurement system utilizing ancillary codes and passive signatures
US5748763A (en) 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US7044395B1 (en) 1993-11-18 2006-05-16 Digimarc Corporation Embedding and reading imperceptible codes on objects
US7515733B2 (en) 1993-11-18 2009-04-07 Digimarc Corporation Methods and arrangements employing digital content items
US5841978A (en) 1993-11-18 1998-11-24 Digimarc Corporation Network linking method using steganographically embedded data objects
WO1996036163A2 (en) 1995-05-08 1996-11-14 Digimarc Corporation Steganography systems
US6122403A (en) 1995-07-27 2000-09-19 Digimarc Corporation Computer system linked by using information in data objects
US7720249B2 (en) * 1993-11-18 2010-05-18 Digimarc Corporation Watermark embedder and reader
US6516079B1 (en) 2000-02-14 2003-02-04 Digimarc Corporation Digital watermark screening and detecting strategies
US6681028B2 (en) 1995-07-27 2004-01-20 Digimarc Corporation Paper-based control of computer systems
US20020009208A1 (en) 1995-08-09 2002-01-24 Adnan Alattar Authentication of physical and electronic media objects using digital watermarks
US6983051B1 (en) * 1993-11-18 2006-01-03 Digimarc Corporation Methods for audio watermarking and decoding
US7171016B1 (en) 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US6546112B1 (en) * 1993-11-18 2003-04-08 Digimarc Corporation Security document with steganographically-encoded authentication data
US20040057581A1 (en) * 1993-11-18 2004-03-25 Rhoads Geoffrey B. Method and apparatus for transaction card security utilizing embedded image data
US7313251B2 (en) * 1993-11-18 2007-12-25 Digimarc Corporation Method and system for managing and controlling electronic media
US7676059B2 (en) 1994-10-21 2010-03-09 Digimarc Corporation Video steganography or encoding
US6449377B1 (en) 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
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
US7113615B2 (en) 1993-11-18 2006-09-26 Digimarc Corporation Watermark embedder and reader
US6345104B1 (en) 1994-03-17 2002-02-05 Digimarc Corporation Digital watermarks and methods for security documents
US7158654B2 (en) 1993-11-18 2007-01-02 Digimarc Corporation Image processor and image processing method
US5841886A (en) 1993-11-18 1998-11-24 Digimarc Corporation Security system for photographic identification
ATE237197T1 (en) 1993-11-18 2003-04-15 Digimarc Corp IDENTIFICATION/CREDITION CODING METHOD AND APPARATUS
USRE40919E1 (en) 1993-11-18 2009-09-22 Digimarc Corporation Methods for surveying dissemination of proprietary empirical data
US6611607B1 (en) 1993-11-18 2003-08-26 Digimarc Corporation Integrating digital watermarks in multimedia content
US6757406B2 (en) 1993-11-18 2004-06-29 Digimarc Corporation Steganographic image processing
US5862260A (en) * 1993-11-18 1999-01-19 Digimarc Corporation Methods for surveying dissemination of proprietary empirical data
US7116781B2 (en) 1993-11-18 2006-10-03 Digimarc Corporation Counteracting geometric distortions in watermarking
US6580819B1 (en) 1993-11-18 2003-06-17 Digimarc Corporation Methods of producing security documents having digitally encoded data and documents employing same
US6614914B1 (en) 1995-05-08 2003-09-02 Digimarc Corporation Watermark embedder and reader
US6681029B1 (en) 1993-11-18 2004-01-20 Digimarc Corporation Decoding steganographic messages embedded in media signals
US6408082B1 (en) 1996-04-25 2002-06-18 Digimarc Corporation Watermark detection using a fourier mellin transform
US5832119C1 (en) 1993-11-18 2002-03-05 Digimarc Corp Methods for controlling systems using control signals embedded in empirical data
US5768426A (en) 1993-11-18 1998-06-16 Digimarc Corporation Graphics processing system employing embedded code signals
US6944298B1 (en) 1993-11-18 2005-09-13 Digimare Corporation Steganographic encoding and decoding of auxiliary codes in media signals
US8144368B2 (en) 1998-01-20 2012-03-27 Digimarc Coporation Automated methods for distinguishing copies from original printed objects
US6993152B2 (en) * 1994-03-17 2006-01-31 Digimarc Corporation Hiding geo-location data through arrangement of objects
US6947571B1 (en) 1999-05-19 2005-09-20 Digimarc Corporation Cell phones with optical capabilities, and related applications
US20020136429A1 (en) 1994-03-17 2002-09-26 John Stach Data hiding through arrangement of objects
US6522770B1 (en) 1999-05-19 2003-02-18 Digimarc Corporation Management of documents and other objects using optical devices
US6882738B2 (en) 1994-03-17 2005-04-19 Digimarc Corporation Methods and tangible objects employing textured machine readable data
US7286684B2 (en) 1994-03-17 2007-10-23 Digimarc Corporation Secure document design carrying auxiliary machine readable information
US5932863A (en) 1994-05-25 1999-08-03 Rathus; Spencer A. Method and apparatus for accessing electric data via a familiar printed medium
US5612943A (en) 1994-07-05 1997-03-18 Moses; Robert W. System for carrying transparent digital data within an audio signal
US6778682B2 (en) 1994-10-21 2004-08-17 Digimarc Corporation Redundantly embedding auxiliary data in source signals
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
US6879701B1 (en) 1994-10-21 2005-04-12 Digimarc Corporation Tile-based digital watermarking techniques
US6535618B1 (en) * 1994-10-21 2003-03-18 Digimarc Corporation Image capture device with steganographic data embedding
EP0710022A3 (en) 1994-10-31 1998-08-26 AT&T Corp. System and method for encoding digital information in a television signal
US6118923A (en) 1994-11-10 2000-09-12 Intel Corporation Method and apparatus for deferred selective viewing of televised programs
US7986806B2 (en) 1994-11-16 2011-07-26 Digimarc Corporation Paper products and physical objects as means to access and control a computer or to navigate over or act as a portal on a network
US5646997A (en) * 1994-12-14 1997-07-08 Barton; James M. Method and apparatus for embedding authentication information within digital data
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
US5745569A (en) 1996-01-17 1998-04-28 The Dice Company Method for stega-cipher protection of computer code
US5623549A (en) * 1995-01-30 1997-04-22 Ritter; Terry F. Cipher mechanisms with fencing and balanced block mixing
US5774452A (en) 1995-03-14 1998-06-30 Aris Technologies, Inc. Apparatus and method for encoding and decoding information in audio signals
US7224819B2 (en) 1995-05-08 2007-05-29 Digimarc Corporation Integrating digital watermarks in multimedia content
US6721440B2 (en) 1995-05-08 2004-04-13 Digimarc Corporation Low visibility watermarks using an out-of-phase color
US6738495B2 (en) 1995-05-08 2004-05-18 Digimarc Corporation Watermarking enhanced to withstand anticipated corruptions
US7486799B2 (en) 1995-05-08 2009-02-03 Digimarc Corporation Methods for monitoring audio and images on the internet
US7724920B2 (en) 1995-05-08 2010-05-25 Digimarc Corporation Digital authentication with analog documents
US6763123B2 (en) 1995-05-08 2004-07-13 Digimarc Corporation Detection of out-of-phase low visibility watermarks
US20030133592A1 (en) 1996-05-07 2003-07-17 Rhoads Geoffrey B. Content objects with computer instructions steganographically encoded therein, and associated methods
US7805500B2 (en) 1995-05-08 2010-09-28 Digimarc Corporation Network linking methods and apparatus
US6728390B2 (en) * 1995-05-08 2004-04-27 Digimarc Corporation Methods and systems using multiple watermarks
US6718046B2 (en) 1995-05-08 2004-04-06 Digimarc Corporation Low visibility watermark using time decay fluorescence
US20090097695A9 (en) 1995-05-08 2009-04-16 Rhoads Geoffrey B Personal document authentication system using watermarking
US6813366B1 (en) 1995-05-08 2004-11-02 Digimarc Corporation Steganographic decoding with transform to spatial domain
US6760463B2 (en) 1995-05-08 2004-07-06 Digimarc Corporation Watermarking methods and media
US7555139B2 (en) 1995-05-08 2009-06-30 Digimarc Corporation Secure documents with hidden signals, and related methods and systems
US6590996B1 (en) 2000-02-14 2003-07-08 Digimarc Corporation Color adaptive watermarking
US6988202B1 (en) 1995-05-08 2006-01-17 Digimarc Corporation Pre-filteriing to increase watermark signal-to-noise ratio
US7054462B2 (en) 1995-05-08 2006-05-30 Digimarc Corporation Inferring object status based on detected watermark data
US5778102A (en) 1995-05-17 1998-07-07 The Regents Of The University Of California, Office Of Technology Transfer Compression embedding
US5832460A (en) * 1995-06-02 1998-11-03 International Business Machines Corporation Method and system for bill presentation and payment reconciliation
US5613004A (en) * 1995-06-07 1997-03-18 The Dice Company Steganographic method and device
US5812776A (en) * 1995-06-07 1998-09-22 Open Market, Inc. Method of providing internet pages by mapping telephone number provided by client to URL and returning the same in a redirect command by server
US6181867B1 (en) 1995-06-07 2001-01-30 Intervu, Inc. Video storage and retrieval system
US5978773A (en) 1995-06-20 1999-11-02 Neomedia Technologies, Inc. System and method for using an ordinary article of commerce to access a remote computer
US6311214B1 (en) 1995-07-27 2001-10-30 Digimarc Corporation Linking of computers based on optical sensing of digital data
US7051086B2 (en) 1995-07-27 2006-05-23 Digimarc Corporation Method of linking on-line data to printed documents
US8429205B2 (en) 1995-07-27 2013-04-23 Digimarc Corporation Associating data with media signals in media signal systems through auxiliary data steganographically embedded in the media signals
US6411725B1 (en) 1995-07-27 2002-06-25 Digimarc Corporation Watermark enabled video objects
US7095871B2 (en) 1995-07-27 2006-08-22 Digimarc Corporation Digital asset management and linking media signals with related data using watermarks
US7770013B2 (en) 1995-07-27 2010-08-03 Digimarc Corporation Digital authentication with digital and analog documents
US7562392B1 (en) 1999-05-19 2009-07-14 Digimarc Corporation Methods of interacting with audio and ambient music
US20030040957A1 (en) 1995-07-27 2003-02-27 Willam Y. Conwell Advertising employing watermarking
US6408331B1 (en) 1995-07-27 2002-06-18 Digimarc Corporation Computer linking methods using encoded graphics
US7006661B2 (en) 1995-07-27 2006-02-28 Digimarc Corp Digital watermarking systems and methods
US8379908B2 (en) 1995-07-27 2013-02-19 Digimarc Corporation Embedding and reading codes on objects
US7003731B1 (en) 1995-07-27 2006-02-21 Digimare Corporation User control and activation of watermark enabled objects
US6650761B1 (en) 1999-05-19 2003-11-18 Digimarc Corporation Watermarked business cards and methods
US5822360A (en) * 1995-09-06 1998-10-13 Solana Technology Development Corporation Method and apparatus for transporting auxiliary data in audio signals
US6580808B2 (en) 1995-09-25 2003-06-17 Digimarc Corporation Method and apparatus for discerning image distortion by reference to encoded marker signals
KR100465359B1 (en) * 1995-10-04 2005-04-06 코닌클리케 필립스 일렉트로닉스 엔.브이. Method and apparatus for one-marking digitally encoded video and / or audio signals, its detection method and apparatus, and its recording medium
US6008819A (en) * 1995-12-27 1999-12-28 Hewlett-Packard Company Information retrieval device for displaying and directly refreshing the display of a plurality of dynamically modifiable documents
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
US6035177A (en) 1996-02-26 2000-03-07 Donald W. Moses Simultaneous transmission of ancillary and audio signals by means of perceptual coding
US5754830A (en) * 1996-04-01 1998-05-19 Openconnect Systems, Incorporated Server and web browser terminal emulator for persistent connection to a legacy host system and method of operation
US6016484A (en) 1996-04-26 2000-01-18 Verifone, Inc. System, method and article of manufacture for network electronic payment instrument and certification of payment and credit collection utilizing a payment
US7685426B2 (en) 1996-05-07 2010-03-23 Digimarc Corporation Managing and indexing content on a network with image bookmarks and digital watermarks
US6421070B1 (en) 1996-11-12 2002-07-16 Digimarc Corporation Smart images and image bookmarking for an internet browser
US20020196272A1 (en) 1998-10-01 2002-12-26 Digimarc Corporation Smart images and image bookmarks for an internet browser
US6307949B1 (en) 1996-05-07 2001-10-23 Digimarc Corporation Methods for optimizing watermark detection
US6381341B1 (en) 1996-05-16 2002-04-30 Digimarc Corporation Watermark encoding method exploiting biases inherent in original signal
US6229924B1 (en) 1996-05-16 2001-05-08 Digimarc Corporation Method and apparatus for watermarking video images
US7024016B2 (en) 1996-05-16 2006-04-04 Digimarc Corporation Digital watermarking apparatus and methods
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
US7107451B2 (en) * 1996-07-02 2006-09-12 Wistaria Trading, Inc. Optimization methods for the insertion, protection, and detection of digital watermarks in digital data
JP3982836B2 (en) 1996-07-16 2007-09-26 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Method for detecting watermark information embedded in an information signal
US5848155A (en) 1996-09-04 1998-12-08 Nec Research Institute, Inc. Spread spectrum watermark for embedded signalling
US5809139A (en) 1996-09-13 1998-09-15 Vivo Software, Inc. Watermarking method and apparatus for compressed digital video
US5734752A (en) * 1996-09-24 1998-03-31 Xerox Corporation Digital watermarking using stochastic screen patterns
US5825892A (en) * 1996-10-28 1998-10-20 International Business Machines Corporation Protecting images with an image watermark
US7751596B2 (en) 1996-11-12 2010-07-06 Digimarc Corporation Methods and arrangements employing digital content items
US8005254B2 (en) 1996-11-12 2011-08-23 Digimarc Corporation Background watermark processing
US20060028689A1 (en) * 1996-11-12 2006-02-09 Perry Burt W Document management with embedded data
US5875249A (en) * 1997-01-08 1999-02-23 International Business Machines Corporation Invisible image watermark for image verification
US5790703A (en) * 1997-01-21 1998-08-04 Xerox Corporation Digital watermarking using conjugate halftone screens
KR100578952B1 (en) * 1997-01-27 2006-10-24 코닌클리케 필립스 일렉트로닉스 엔.브이. Method and apparatus for inserting additional data into an encoded signal
US6233684B1 (en) 1997-02-28 2001-05-15 Contenaguard Holdings, Inc. System for controlling the distribution and use of rendered digital works through watermaking
US6222932B1 (en) * 1997-06-27 2001-04-24 International Business Machines Corporation Automatic adjustment of image watermark strength based on computed image texture
GB9715228D0 (en) 1997-07-18 1997-09-24 Sertway Limited Communications system and method
WO1999011064A2 (en) 1997-08-26 1999-03-04 Koninklijke Philips Electronics N.V. System for transferring content information and supplemental information relating thereto
DE69828148T2 (en) * 1997-09-02 2005-12-22 Koninklijke Philips Electronics N.V. METHOD AND APPARATUS FOR WATERMARK EVALUATION
US5958013A (en) * 1997-09-11 1999-09-28 International Business Machines Corporation Apparatus, methods and computer program products for conducting a persistent session with a host-based application
US6108434A (en) 1997-09-12 2000-08-22 Signafy, Inc. Counteracting geometric distortions for DCT based watermarking
US6611599B2 (en) * 1997-09-29 2003-08-26 Hewlett-Packard Development Company, L.P. Watermarking of digital object
US5949055A (en) * 1997-10-23 1999-09-07 Xerox Corporation Automatic geometric image transformations using embedded signals
US6088123A (en) 1997-11-21 2000-07-11 International Business Machines Corporation Dithering masks with very large periods
US6101602A (en) * 1997-12-08 2000-08-08 The United States Of America As Represented By The Secretary Of The Air Force Digital watermarking by adding random, smooth patterns
US6208745B1 (en) * 1997-12-30 2001-03-27 Sarnoff Corporation Method and apparatus for imbedding a watermark into a bitstream representation of a digital image sequence
US6198832B1 (en) 1998-01-09 2001-03-06 U.S. Philips Corporation Embedding and detecting a watermark in images
US6700994B2 (en) * 1998-01-09 2004-03-02 Koninklijke Philips Electronics N.V. Embedding and detecting a watermark in images
US6804376B2 (en) * 1998-01-20 2004-10-12 Digimarc Corporation Equipment employing watermark-based authentication function
US6697103B1 (en) 1998-03-19 2004-02-24 Dennis Sunga Fernandez Integrated network for monitoring remote objects
US6256736B1 (en) 1998-04-13 2001-07-03 International Business Machines Corporation Secured signal modification and verification with privacy control
US6411392B1 (en) * 1998-04-15 2002-06-25 Massachusetts Institute Of Technology Method and apparatus for data hiding in printed images
US6965873B1 (en) 1998-04-16 2005-11-15 Digimarc Corporation Electronic commerce using optical input device
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
US6252675B1 (en) * 1998-05-08 2001-06-26 Xerox Corporation Apparatus and method for halftone hybrid screen generation
US6792542B1 (en) 1998-05-12 2004-09-14 Verance Corporation Digital system for embedding a pseudo-randomly modulated auxiliary data sequence in digital samples
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
US6332194B1 (en) * 1998-06-05 2001-12-18 Signafy, Inc. Method for data preparation and watermark insertion
US6216237B1 (en) 1998-06-19 2001-04-10 Lucent Technologies Inc. Distributed indirect software instrumentation
US6587944B2 (en) * 1998-06-29 2003-07-01 Intel Corporation Fragile watermarking for objects
US20030130954A1 (en) 1998-07-31 2003-07-10 Carr J. Scott Postal applications including digital watermarks
US20030105730A1 (en) 1999-05-19 2003-06-05 Rhoads Geoffrey B. Postal meters and systems employing watermarking
US6978036B2 (en) 1998-07-31 2005-12-20 Digimarc Corporation Tamper-resistant authentication techniques for identification documents
US7953824B2 (en) 1998-08-06 2011-05-31 Digimarc Corporation Image sensors worn or attached on humans for imagery identification
US6286043B1 (en) 1998-08-26 2001-09-04 International Business Machines Corp. User profile management in the presence of dynamic pages using content templates
US6098106A (en) 1998-09-11 2000-08-01 Digitalconvergence.Com Inc. Method for controlling a computer with an audio signal
US7313253B2 (en) 1998-09-11 2007-12-25 Digimarc Corporation Methods and tangible objects employing machine readable data in photo-reactive materials
US6219634B1 (en) * 1998-10-14 2001-04-17 Liquid Audio, Inc. Efficient watermark method and apparatus for digital signals
US6320965B1 (en) * 1998-10-14 2001-11-20 Liquid Audio, Inc. Secure watermark method and apparatus for digital signals
FR2785426B1 (en) * 1998-10-30 2001-01-26 Canon Kk METHOD AND DEVICE FOR INSERTING AND DETECTING A MARK IN DIGITAL DATA
US8290202B2 (en) 1998-11-03 2012-10-16 Digimarc Corporation Methods utilizing steganography
DE69923781T2 (en) 1998-11-19 2005-07-07 Digimarc Corp., Lake Oswego PRINTING AND VERIFICATION OF SELF-CHECKING SAFETY DOCUMENTS
US6128736A (en) 1998-12-18 2000-10-03 Signafy, Inc. Method for inserting a watermark signal into data
US6546113B1 (en) * 1999-03-02 2003-04-08 Leitch Technology International Inc. Method and apparatus for video watermarking
EP1043687B1 (en) 1999-04-09 2006-11-22 Canon Kabushiki Kaisha Method for inserting a watermark and associated decoding method
US7111170B2 (en) 1999-05-19 2006-09-19 Digimarc Corporation Distributed system for responding to watermarked documents
US7406214B2 (en) 1999-05-19 2008-07-29 Digimarc Corporation Methods and devices employing optical sensors and/or steganography
US20070055884A1 (en) 1999-05-19 2007-03-08 Rhoads Geoffrey B User control and activation of watermark enabled objects
US7261612B1 (en) 1999-08-30 2007-08-28 Digimarc Corporation Methods and systems for read-aloud books
US7760905B2 (en) 1999-06-29 2010-07-20 Digimarc Corporation Wireless mobile phone with content processing
US20010034705A1 (en) 1999-05-19 2001-10-25 Rhoads Geoffrey B. Payment-based systems for internet music
US20020032734A1 (en) 2000-07-26 2002-03-14 Rhoads Geoffrey B. Collateral data combined with user characteristics to select web site
US20100045816A1 (en) 1999-05-19 2010-02-25 Rhoads Geoffrey B User Feedback in Connection with Object Recognition
US20020131076A1 (en) 1999-06-29 2002-09-19 Davis Bruce L. Distribution and use of trusted photos
US7502759B2 (en) 1999-08-30 2009-03-10 Digimarc Corporation Digital watermarking methods and related toy and game applications
US6456727B1 (en) 1999-09-02 2002-09-24 Hitachi, Ltd. Method of extracting digital watermark information and method of judging but value of digital watermark information
US7174293B2 (en) * 1999-09-21 2007-02-06 Iceberg Industries Llc Audio identification system and method
CA2310769C (en) 1999-10-27 2013-05-28 Nielsen Media Research, Inc. Audio signature extraction and correlation
US7450734B2 (en) 2000-01-13 2008-11-11 Digimarc Corporation Digital asset management, targeted searching and desktop searching using digital watermarks
US6385329B1 (en) 2000-02-14 2002-05-07 Digimarc Corporation Wavelet domain watermarks
US6535617B1 (en) 2000-02-14 2003-03-18 Digimarc Corporation Removal of fixed pattern noise and other fixed patterns from media signals
US7020303B2 (en) * 2000-03-18 2006-03-28 Digimarc Corporation Feature-based watermarks and watermark detection strategies
US7142691B2 (en) * 2000-03-18 2006-11-28 Digimarc Corporation Watermark embedding functions in rendering description files
US7046808B1 (en) 2000-03-24 2006-05-16 Verance Corporation Method and apparatus for detecting processing stages applied to a signal
AU2001255445A1 (en) 2000-04-17 2001-10-30 Digimarc Corporation Authentication of physical and electronic media objects using digital watermarks
US7027614B2 (en) 2000-04-19 2006-04-11 Digimarc Corporation Hiding information to reduce or offset perceptible artifacts
US7738673B2 (en) 2000-04-19 2010-06-15 Digimarc Corporation Low visible digital watermarks
US6996252B2 (en) 2000-04-19 2006-02-07 Digimarc Corporation Low visibility watermark using time decay fluorescence
US6804377B2 (en) 2000-04-19 2004-10-12 Digimarc Corporation Detecting information hidden out-of-phase in color channels
US7305104B2 (en) 2000-04-21 2007-12-04 Digimarc Corporation Authentication of identification documents using digital watermarks
US7346184B1 (en) 2000-05-02 2008-03-18 Digimarc Corporation Processing methods combining multiple frames of image data
JP3681157B2 (en) * 2000-06-27 2005-08-10 株式会社東芝 Digital watermark detection method, digital watermark detection apparatus, region determination method, and storage medium
US7657058B2 (en) 2000-07-19 2010-02-02 Digimarc Corporation Watermark orientation signals conveying payload data
JP2004506379A (en) 2000-08-09 2004-02-26 アヴウェイ.コム・インコーポレイテッド Method and system for embedding information bits steganographically in a source signal
US7346776B2 (en) 2000-09-11 2008-03-18 Digimarc Corporation Authenticating media signals by adjusting frequency characteristics to reference values
US7246239B2 (en) * 2001-01-24 2007-07-17 Digimarc Corporation Digital watermarks for checking authenticity of printed objects
WO2002023468A1 (en) 2000-09-11 2002-03-21 Digimarc Corporation Authenticating and measuring quality of service of multimedia signals using digital watermark analyses
US7656930B2 (en) * 2001-09-10 2010-02-02 Digimarc Corporation Assessing quality of service using digital watermark information
US6760464B2 (en) * 2000-10-11 2004-07-06 Digimarc Corporation Halftone watermarking and related applications
US6694041B1 (en) * 2000-10-11 2004-02-17 Digimarc Corporation Halftone watermarking and related applications
AU2002225593A1 (en) 2000-10-17 2002-04-29 Digimarc Corporation User control and activation of watermark enabled objects
US20020176003A1 (en) 2000-10-25 2002-11-28 Seder Phillip Andrew Watermark reading kiosks
FR2816153B1 (en) 2000-10-27 2002-12-20 Canon Kk METHOD FOR PRE-CHECKING THE DETECTABILITY OF A MARKING SIGNAL
US8103877B2 (en) 2000-12-21 2012-01-24 Digimarc Corporation Content identification and electronic tickets, coupons and credits
FR2819672B1 (en) 2001-01-18 2003-04-04 Canon Kk METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING DIGITAL IMAGES USING AN IMAGE MARKER FOR DECODING
US7248715B2 (en) 2001-04-06 2007-07-24 Digimarc Corporation Digitally watermarking physical media
US7607016B2 (en) 2001-04-20 2009-10-20 Digimarc Corporation Including a metric in a digital watermark for media authentication
US8457346B2 (en) 2001-04-24 2013-06-04 Digimarc Corporation Digital watermarking image signals on-chip
US7340076B2 (en) * 2001-05-10 2008-03-04 Digimarc Corporation Digital watermarks for unmanned vehicle navigation
DE10129239C1 (en) 2001-06-18 2002-10-31 Fraunhofer Ges Forschung Audio signal water-marking method processes water-mark signal before embedding in audio signal so that it is not audibly perceived
US8094869B2 (en) 2001-07-02 2012-01-10 Digimarc Corporation Fragile and emerging digital watermarks
JP2003044563A (en) * 2001-08-02 2003-02-14 Fuji Photo Film Co Ltd Information management system for drinking and eating establishment
US7537170B2 (en) 2001-08-31 2009-05-26 Digimarc Corporation Machine-readable security features for printed objects
US7213757B2 (en) 2001-08-31 2007-05-08 Digimarc Corporation Emerging security features for identification documents
US7027612B2 (en) * 2001-10-05 2006-04-11 Digimarc Corporation Marking physical objects and related systems and methods
US7321667B2 (en) * 2002-01-18 2008-01-22 Digimarc Corporation Data hiding through arrangement of objects
US7231061B2 (en) 2002-01-22 2007-06-12 Digimarc Corporation Adaptive prediction filtering for digital watermarking
US7974495B2 (en) * 2002-06-10 2011-07-05 Digimarc Corporation Identification and protection of video
WO2004035321A1 (en) 2002-10-15 2004-04-29 Digimarc Corporation Identification document and related methods
US7978874B2 (en) 2002-10-21 2011-07-12 Digimarc Corporation Digital watermarking for workflow by tracking content or content identifiers with respect to time
JP2004180715A (en) 2002-11-29 2004-07-02 Toshiba Corp X-ray computed tomography apparatus
US7763179B2 (en) 2003-03-21 2010-07-27 Digimarc Corporation Color laser engraving and digital watermarking
US8301893B2 (en) 2003-08-13 2012-10-30 Digimarc Corporation Detecting media areas likely of hosting watermarks
US8181884B2 (en) 2003-11-17 2012-05-22 Digimarc Corporation Machine-readable features for objects
US7183062B2 (en) * 2003-12-30 2007-02-27 Aventis Pharmaceuticals Inc. Prostaglandin receptor protein and methods of use thereof
US9058388B2 (en) 2004-06-22 2015-06-16 Digimarc Corporation Internet and database searching with handheld devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5710834A (en) * 1995-05-08 1998-01-20 Digimarc Corporation Method and apparatus responsive to a code signal conveyed through a graphic image
US6282362B1 (en) * 1995-11-07 2001-08-28 Trimble Navigation Limited Geographical position/image digital recording and display system

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8051294B2 (en) 1993-11-18 2011-11-01 Digimarc Corporation Methods for audio watermarking and decoding
US8355514B2 (en) 1993-11-18 2013-01-15 Digimarc Corporation Audio encoding to convey auxiliary information, and media embodying same
US8144924B2 (en) 1995-05-08 2012-03-27 Digimarc Corporation Content objects with computer instructions steganographically encoded therein, and associated methods
US8280101B2 (en) 1995-08-09 2012-10-02 Digimarc Corporation Identification documents and authentication of such documents
US8059860B2 (en) 1998-04-16 2011-11-15 Brundage Trent J Steganographic encoding
US8051169B2 (en) 2000-03-18 2011-11-01 Digimarc Corporation Methods and systems useful in linking from objects to remote resources
US8312168B2 (en) 2000-03-18 2012-11-13 Digimarc Corporation Methods for linking from objects to remote resources
US8175329B2 (en) 2000-04-17 2012-05-08 Digimarc Corporation Authentication of physical and electronic media objects using digital watermarks
US8126272B2 (en) 2000-05-02 2012-02-28 Digimarc Corporation Methods combining multiple frames of image data
US8515121B2 (en) 2002-01-18 2013-08-20 Digimarc Corporation Arrangement of objects in images or graphics to convey a machine-readable signal
US20180014804A1 (en) * 2004-01-21 2018-01-18 Canon Kabushiki Kaisha Radiographic apparatus, and control method and program thereof
US20050159903A1 (en) * 2004-01-21 2005-07-21 Takashi Ogura Radiographic apparatus, and control method and program thereof
US20060163354A1 (en) * 2005-01-21 2006-07-27 Tyranski Robert P System and method of product identification, authentication and verification
US20080140623A1 (en) * 2006-12-11 2008-06-12 Microsoft Corporation Recursive reporting via a spreadsheet
US8805689B2 (en) 2008-04-11 2014-08-12 The Nielsen Company (Us), Llc Methods and apparatus to generate and use content-aware watermarks
US9042598B2 (en) 2008-04-11 2015-05-26 The Nielsen Company (Us), Llc Methods and apparatus to generate and use content-aware watermarks
US9514503B2 (en) 2008-04-11 2016-12-06 The Nielsen Company (Us), Llc Methods and apparatus to generate and use content-aware watermarks
US20090256972A1 (en) * 2008-04-11 2009-10-15 Arun Ramaswamy Methods and apparatus to generate and use content-aware watermarks
WO2015108774A1 (en) * 2014-01-15 2015-07-23 Cisco Technology, Inc. Tracking and tracing information theft from information systems
US9294480B2 (en) 2014-01-15 2016-03-22 Cisco Technology, Inc. Tracking and tracing information theft from information systems

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