CA2452340A1 - Macroblock mode decision biasing for video compression systems - Google Patents

Macroblock mode decision biasing for video compression systems Download PDF

Info

Publication number
CA2452340A1
CA2452340A1 CA002452340A CA2452340A CA2452340A1 CA 2452340 A1 CA2452340 A1 CA 2452340A1 CA 002452340 A CA002452340 A CA 002452340A CA 2452340 A CA2452340 A CA 2452340A CA 2452340 A1 CA2452340 A1 CA 2452340A1
Authority
CA
Canada
Prior art keywords
coding
aspect includes
coded bits
image quality
another aspect
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.)
Granted
Application number
CA002452340A
Other languages
French (fr)
Other versions
CA2452340C (en
Inventor
Gary A. Demos
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corporation
Gary A. Demos
Demografx
Dolby Laboratories Inc.
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
Application filed by Dolby Laboratories Licensing Corporation, Gary A. Demos, Demografx, Dolby Laboratories Inc. filed Critical Dolby Laboratories Licensing Corporation
Publication of CA2452340A1 publication Critical patent/CA2452340A1/en
Application granted granted Critical
Publication of CA2452340C publication Critical patent/CA2452340C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformation in the plane of the image
    • G06T3/40—Scaling the whole image or part thereof
    • G06T3/4007—Interpolation-based scaling, e.g. bilinear interpolation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/115—Selection of the code volume for a coding unit prior to coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/177—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a group of pictures [GOP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/547—Motion estimation performed in a transform domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/567—Motion estimation based on rate distortion criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Color Television Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A method, system, and computer program for coding video frames in a video compression system. One aspect includes automatically scaling coding mode biases as a function of the number of bits of coding precision in the video compression system, or dynamic range and/or contrast range, or quantization parameter. Another aspect includes selecting coding mode biases as a function of the total number of bits required for macroblock coding, or setting all biases to zero. Another aspect includes selecting one of a plurality of coding modes (1) resulting in no more than a selected number of coded bits, or (2) having at least a selected image quality, or (3) having a combination of number of coded bits and image quality. Another aspect includes selecting, as a preferred coding mode, one of a plurality of coding modes having a selected combination of number of coded bits and image quality based on various AC and DC motion vectors. Another aspect includes selecting, as a preferred frame coding choice, one of a plurality of frame coding choices having a selected combination of number of coded bits and image quality. The number of coded bits can also be determined for a set of selected quantization parameter (QP) values or quantization frequency weighting matrices, for each frame coding choice. This approach may also be used to select a preferred QP value or quantization frequency weighting matrix.
CA002452340A 2001-07-12 2002-07-12 Macroblock mode decision biasing for video compression systems Expired - Fee Related CA2452340C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/905,040 2001-07-12
US09/905,040 US6975680B2 (en) 2001-07-12 2001-07-12 Macroblock mode decision biasing for video compression systems
PCT/US2002/022202 WO2003007496A1 (en) 2001-07-12 2002-07-12 Macroblock mode decision biasing for video compression systems

Publications (2)

Publication Number Publication Date
CA2452340A1 true CA2452340A1 (en) 2003-01-23
CA2452340C CA2452340C (en) 2008-05-20

Family

ID=25420208

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002452340A Expired - Fee Related CA2452340C (en) 2001-07-12 2002-07-12 Macroblock mode decision biasing for video compression systems

Country Status (5)

Country Link
US (1) US6975680B2 (en)
EP (1) EP1405426A4 (en)
JP (1) JP2004535725A (en)
CA (1) CA2452340C (en)
WO (1) WO2003007496A1 (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2610430T3 (en) 2001-12-17 2017-04-27 Microsoft Technology Licensing, Llc Default macroblock coding
US7003035B2 (en) 2002-01-25 2006-02-21 Microsoft Corporation Video coding methods and apparatuses
US20040001546A1 (en) 2002-06-03 2004-01-01 Alexandros Tourapis Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation
US7154952B2 (en) 2002-07-19 2006-12-26 Microsoft Corporation Timestamp-independent motion vector prediction for predictive (P) and bidirectionally predictive (B) pictures
US7042943B2 (en) 2002-11-08 2006-05-09 Apple Computer, Inc. Method and apparatus for control of rate-distortion tradeoff by mode selection in video encoders
ES2788382T3 (en) 2002-11-25 2020-10-21 Godo Kaisha Ip Bridge 1 Method for encoding and decoding B-images in direct mode
US7194035B2 (en) * 2003-01-08 2007-03-20 Apple Computer, Inc. Method and apparatus for improved coding mode selection
US8064520B2 (en) 2003-09-07 2011-11-22 Microsoft Corporation Advanced bi-directional predictive coding of interlaced video
US9071840B2 (en) * 2004-01-30 2015-06-30 Thomson Licensing Encoder with adaptive rate control for H.264
US7801383B2 (en) 2004-05-15 2010-09-21 Microsoft Corporation Embedded scalar quantizers with arbitrary dead-zone ratios
US7508550B2 (en) * 2004-06-17 2009-03-24 Fujifilm Corporation Image correcting apparatus and method, and image correcting program, and look-up table creating apparatus and method, and look-up table creating program
US7953155B2 (en) * 2004-12-16 2011-05-31 Tut Systems, Inc. Methods of selecting an encoding mode
US8208536B2 (en) * 2005-04-28 2012-06-26 Apple Inc. Method and apparatus for encoding using single pass rate controller
US8422546B2 (en) 2005-05-25 2013-04-16 Microsoft Corporation Adaptive video encoding using a perceptual model
US9077960B2 (en) 2005-08-12 2015-07-07 Microsoft Corporation Non-zero coefficient block pattern coding
US8792554B2 (en) * 2006-01-09 2014-07-29 Lg Electronics Inc. Inter-layer prediction method for video signal
WO2007105614A1 (en) * 2006-03-10 2007-09-20 Nec Corporation Intra-forecast mode selecting method, moving picture coding method, and device and program using the same
US8059721B2 (en) 2006-04-07 2011-11-15 Microsoft Corporation Estimating sample-domain distortion in the transform domain with rounding compensation
US8130828B2 (en) 2006-04-07 2012-03-06 Microsoft Corporation Adjusting quantization to preserve non-zero AC coefficients
US8503536B2 (en) 2006-04-07 2013-08-06 Microsoft Corporation Quantization adjustments for DC shift artifacts
US7889789B2 (en) * 2006-04-07 2011-02-15 Microsoft Corporation Making interlace frame level coding mode decisions
US7974340B2 (en) 2006-04-07 2011-07-05 Microsoft Corporation Adaptive B-picture quantization control
US7995649B2 (en) 2006-04-07 2011-08-09 Microsoft Corporation Quantization adjustment based on texture level
US8711925B2 (en) 2006-05-05 2014-04-29 Microsoft Corporation Flexible quantization
US8238424B2 (en) 2007-02-09 2012-08-07 Microsoft Corporation Complexity-based adaptive preprocessing for multiple-pass video compression
US8019804B2 (en) * 2007-03-26 2011-09-13 City University Of Hong Kong Method and apparatus for calculating an SSD and encoding a video signal
US8498335B2 (en) 2007-03-26 2013-07-30 Microsoft Corporation Adaptive deadzone size adjustment in quantization
US8243797B2 (en) 2007-03-30 2012-08-14 Microsoft Corporation Regions of interest for quality adjustments
US8442337B2 (en) 2007-04-18 2013-05-14 Microsoft Corporation Encoding adjustments for animation content
US8331438B2 (en) 2007-06-05 2012-12-11 Microsoft Corporation Adaptive selection of picture-level quantization parameters for predicted video pictures
US8254455B2 (en) 2007-06-30 2012-08-28 Microsoft Corporation Computing collocated macroblock information for direct mode macroblocks
US20090052540A1 (en) * 2007-08-23 2009-02-26 Imagine Communication Ltd. Quality based video encoding
US8295356B2 (en) * 2008-03-07 2012-10-23 International Business Machines Corporation Method and system for coding mode selection in video compression systems
US8189933B2 (en) 2008-03-31 2012-05-29 Microsoft Corporation Classifying and controlling encoding quality for textured, dark smooth and smooth video content
US8451719B2 (en) * 2008-05-16 2013-05-28 Imagine Communications Ltd. Video stream admission
US8897359B2 (en) 2008-06-03 2014-11-25 Microsoft Corporation Adaptive quantization for enhancement layer video coding
KR101200491B1 (en) * 2008-12-22 2012-11-16 한국전자통신연구원 Apparatus and method of detecting person
US8189666B2 (en) 2009-02-02 2012-05-29 Microsoft Corporation Local picture identifier and computation of co-located information
US9219916B2 (en) 2012-06-12 2015-12-22 Dolby Laboratories Licensing Corporation Joint base layer and enhancement layer quantizer adaptation in EDR video coding
MX365498B (en) 2014-03-04 2019-06-05 Microsoft Technology Licensing Llc Adaptive switching of color spaces, color sampling rates and/or bit depths.
WO2015131330A1 (en) * 2014-03-04 2015-09-11 Microsoft Technology Licensing, Llc Encoding strategies for adaptive switching of color spaces, color sampling rates and/or bit depths
US20150256832A1 (en) * 2014-03-07 2015-09-10 Magnum Semiconductor, Inc. Apparatuses and methods for performing video quantization rate distortion calculations
RU2648276C1 (en) 2014-03-27 2018-03-23 МАЙКРОСОФТ ТЕКНОЛОДЖИ ЛАЙСЕНСИНГ, ЭлЭлСи Quantization/scaling and inverse quantization/scaling adjustment when switching color spaces
US10687069B2 (en) 2014-10-08 2020-06-16 Microsoft Technology Licensing, Llc Adjustments to encoding and decoding when switching color spaces
WO2020019354A1 (en) * 2018-07-27 2020-01-30 深圳市大疆创新科技有限公司 Video encoding method and device, and computer readable storage medium

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5488482A (en) * 1992-01-29 1996-01-30 Mitsubishi Denki Kabushiki Kaisha High-efficiency encoder and video information recording/reproducing apparatus
KR0166722B1 (en) * 1992-11-30 1999-03-20 윤종용 Encoding and decoding method and apparatus thereof
JPH07202820A (en) * 1993-12-28 1995-08-04 Matsushita Electric Ind Co Ltd Bit rate control system
US5771081A (en) * 1994-02-28 1998-06-23 Korea Telecommunication Authority Bit system for transmitting digital video data
US6192081B1 (en) * 1995-10-26 2001-02-20 Sarnoff Corporation Apparatus and method for selecting a coding mode in a block-based coding system
US5963673A (en) * 1995-12-20 1999-10-05 Sanyo Electric Co., Ltd. Method and apparatus for adaptively selecting a coding mode for video encoding
US5872598A (en) * 1995-12-26 1999-02-16 C-Cube Microsystems Scene change detection using quantization scale factor rate control
US5991447A (en) * 1997-03-07 1999-11-23 General Instrument Corporation Prediction and coding of bi-directionally predicted video object planes for interlaced digital video
US5974184A (en) * 1997-03-07 1999-10-26 General Instrument Corporation Intra-macroblock DC and AC coefficient prediction for interlaced digital video
US6057884A (en) * 1997-06-05 2000-05-02 General Instrument Corporation Temporal and spatial scaleable coding for video object planes
US6351563B1 (en) * 1997-07-09 2002-02-26 Hyundai Electronics Ind. Co., Ltd. Apparatus and method for coding/decoding scalable shape binary image using mode of lower and current layers
JP4201849B2 (en) * 1997-07-16 2008-12-24 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 Video encoding method and apparatus, and corresponding decoding apparatus
US6493385B1 (en) * 1997-10-23 2002-12-10 Mitsubishi Denki Kabushiki Kaisha Image encoding method, image encoder, image decoding method, and image decoder
US6434196B1 (en) * 1998-04-03 2002-08-13 Sarnoff Corporation Method and apparatus for encoding video information
JP3748717B2 (en) * 1998-08-31 2006-02-22 シャープ株式会社 Video encoding device
US6449312B1 (en) * 2000-06-08 2002-09-10 Motorola, Inc. Method of estimating motion in interlaced video

Also Published As

Publication number Publication date
CA2452340C (en) 2008-05-20
JP2004535725A (en) 2004-11-25
US6975680B2 (en) 2005-12-13
EP1405426A4 (en) 2009-08-26
US20030108102A1 (en) 2003-06-12
WO2003007496A1 (en) 2003-01-23
EP1405426A1 (en) 2004-04-07

Similar Documents

Publication Publication Date Title
CA2452340A1 (en) Macroblock mode decision biasing for video compression systems
US5592302A (en) Coding method for coding pixel blocks and apparatus therefor
US6831947B2 (en) Adaptive quantization based on bit rate prediction and prediction error energy
US9258568B2 (en) Quantization method and apparatus in encoding/decoding
EP2285117B1 (en) Video coder providing implicit coefficient prediction and scan adaption for image coding and intra coding of video
US6011864A (en) Digital image coding system having self-adjusting selection criteria for selecting a transform function
CN1146229C (en) Quantization circuitry as for video signal compression systems
CN1164123C (en) Quantization process for video encoding
US6075619A (en) Image processing apparatus and method
JP3106749B2 (en) Adaptive dynamic range coding device
US20080192824A1 (en) Video coding method and video coding apparatus
JPH05145773A (en) Device and method of encoding video picture
JPH0595536A (en) High efficiency coded signal processor
WO2003061265A3 (en) Method and apparatus for selecting macroblock quantization in a video encoder
US20040234150A1 (en) Quantization matrix adjusting method for avoiding underflow of data
EP0960528A2 (en) Method of frame by frame calculation of quantization matrices
CA2181424A1 (en) Code Amount Controlling Method for Coded Pictures
US6501800B1 (en) Variable bit-rate encoding device
US5508745A (en) Apparatus for controlling a quantization level to be modified by a motion vector
EP1691560B1 (en) Video coder providing implicit coefficient prediction for image coding and intra coding of video
JP3626779B2 (en) Image coding method and apparatus
GB2308771A (en) Video encoding based on inter block correlation
US5825422A (en) Method and apparatus for encoding a video signal based on inter-block redundancies
JP2614661B2 (en) High efficiency image coding device
WO2001013627A1 (en) Electronic camera and image processing program

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20200831