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GB2410852A - Manipulation of video compression - Google Patents

Manipulation of video compression Download PDF

Info

Publication number
GB2410852A
GB2410852A GB0504586A GB0504586A GB2410852A GB 2410852 A GB2410852 A GB 2410852A GB 0504586 A GB0504586 A GB 0504586A GB 0504586 A GB0504586 A GB 0504586A GB 2410852 A GB2410852 A GB 2410852A
Authority
GB
United Kingdom
Prior art keywords
pictures
sequence
quality
coded
manipulation
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
GB0504586A
Other versions
GB2410852B (en
GB0504586D0 (en
Inventor
Violet Snell
Michael James Knee
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.)
Snell Advanced Media Ltd
Original Assignee
Snell and Wilcox Ltd
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 Snell and Wilcox Ltd filed Critical Snell and Wilcox Ltd
Publication of GB0504586D0 publication Critical patent/GB0504586D0/en
Publication of GB2410852A publication Critical patent/GB2410852A/en
Application granted granted Critical
Publication of GB2410852B publication Critical patent/GB2410852B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04N19/10—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
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for 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
    • H04N19/102—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
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of 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
    • H04N19/169—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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/31—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the temporal 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
    • H04N19/587—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
    • 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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Color Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

A method of compressing a picture sequence in which a first set of pictures in the sequence, and a second set of pictures interleaved with the first set of pictures in the sequence are identified, and in which the first set of pictures are coded to a high coding quality and the second set of pictures are coded to a quality determined by the remaining bitrate resources. Downstream the first set of pictures can be extracted to produce a separate high quality picture sequence. The compression coding is preferably MPEG based, and control of the coding quality may be achieved by varying quantizer weighting matrix values in a linear combination of a flat matrix and a default non-flat matrix.

Description

GB 2410852 A continuation (74) Agent and/or Address for Service: (56) cont
Mathys & Squire SONG BIN ET AL: "Control strategy of subjective video Holborn, LONDON, EC1N 2SQ, quality over error-prone channels*" COMMUNICATION United Kingdom TECHNOLOGY PROCEEDINGS, 2000. WCC - ICCT 2000.
INTERNATIONAL CONFERENCE ON, vol. 1, (200-08-211, pages 962-965, XP010526892,
(58) Field of Search by ISA:
INT CL7 G11B, H04N Other: Online: EPO-lnternal
GB0504586A 2002-09-12 2003-09-12 Manipulation of video compression Expired - Fee Related GB2410852B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0221146A GB2393060B (en) 2002-09-12 2002-09-12 Manipulation of video compression
PCT/GB2003/003991 WO2004025964A2 (en) 2002-09-12 2003-09-12 Manipulation of video compression

Publications (3)

Publication Number Publication Date
GB0504586D0 GB0504586D0 (en) 2005-04-13
GB2410852A true GB2410852A (en) 2005-08-10
GB2410852B GB2410852B (en) 2006-01-04

Family

ID=9943919

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0221146A Expired - Fee Related GB2393060B (en) 2002-09-12 2002-09-12 Manipulation of video compression
GB0504586A Expired - Fee Related GB2410852B (en) 2002-09-12 2003-09-12 Manipulation of video compression

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0221146A Expired - Fee Related GB2393060B (en) 2002-09-12 2002-09-12 Manipulation of video compression

Country Status (4)

Country Link
AU (1) AU2003269142A1 (en)
DE (1) DE10393211T5 (en)
GB (2) GB2393060B (en)
WO (1) WO2004025964A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7925108B2 (en) 2005-03-14 2011-04-12 Panasonic Corporation Encoding device and dynamic image recording system having the encoding device
MX2009009947A (en) * 2007-04-16 2009-09-24 Toshiba Kk Image encoding and image decoding method and device.
ES2350664B1 (en) * 2008-09-01 2011-11-16 Fundacion Cetena BIT-RATE CONTROL METHOD IN MJPEG-BASED DIGITAL VIDEO COMPRESSION SYSTEMS.
WO2013158293A1 (en) * 2012-04-19 2013-10-24 Vid Scale, Inc. System and method for error-resilient video coding

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4132359A1 (en) * 1991-09-27 1993-04-01 Grundig Emv METHOD FOR RECORDING MOVING IMAGES FOR A FOLLOWING, MOTION-INFORMATION-BASED SIGNAL PROCESSING
WO1999009747A1 (en) * 1997-08-14 1999-02-25 Samsung Electronics Co., Ltd. Video transmission apparatus employing intra-frame-only video compression that is mpeg-2 compatible
US5915069A (en) * 1995-09-27 1999-06-22 Sony Corporation Apparatus and method for recording a video signal on a record medium
WO2001022735A1 (en) * 1999-09-21 2001-03-29 Hewlett-Packard Company Video communication using multiple streams
FR2811187A1 (en) * 2000-07-03 2002-01-04 Telediffusion De France Tdf Public place/road traffic/site surveillance having digital video sequences with predictive/non predictive images with adaptive time coding varying image step sizes following alert state.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514663A3 (en) * 1991-05-24 1993-07-14 International Business Machines Corporation An apparatus and method for motion video encoding employing an adaptive quantizer
US5384598A (en) * 1992-10-20 1995-01-24 International Business Machines Corporation System and method for frame differencing video compression and decompression with frame rate scalability
CA2105209A1 (en) * 1993-08-31 1995-03-01 Limin Wang Bit rate control for hybrid dpcm/dct video codec
US5731837A (en) * 1996-01-25 1998-03-24 Thomson Multimedia, S.A. Quantization circuitry as for video signal compression systems
US6480541B1 (en) * 1996-11-27 2002-11-12 Realnetworks, Inc. Method and apparatus for providing scalable pre-compressed digital video with reduced quantization based artifacts
US6118822A (en) * 1997-12-01 2000-09-12 Conexant Systems, Inc. Adaptive entropy coding in adaptive quantization framework for video signal coding systems and processes
JPH11196422A (en) * 1997-12-16 1999-07-21 Texas Instr Inc <Ti> Encode method of image signal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4132359A1 (en) * 1991-09-27 1993-04-01 Grundig Emv METHOD FOR RECORDING MOVING IMAGES FOR A FOLLOWING, MOTION-INFORMATION-BASED SIGNAL PROCESSING
US5915069A (en) * 1995-09-27 1999-06-22 Sony Corporation Apparatus and method for recording a video signal on a record medium
WO1999009747A1 (en) * 1997-08-14 1999-02-25 Samsung Electronics Co., Ltd. Video transmission apparatus employing intra-frame-only video compression that is mpeg-2 compatible
WO2001022735A1 (en) * 1999-09-21 2001-03-29 Hewlett-Packard Company Video communication using multiple streams
FR2811187A1 (en) * 2000-07-03 2002-01-04 Telediffusion De France Tdf Public place/road traffic/site surveillance having digital video sequences with predictive/non predictive images with adaptive time coding varying image step sizes following alert state.

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
KEESMAN G ET AL: "BIT-RATE CONTROL FOR MPEG ENCODERS" SIGNAL PROCESSING. IMAGE COMMUNICATION, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 6, no. 6, (1995-02-01), pages 545-560, XP000491860 ISSN: 0923-5965 *
SONG BIN ET AL: "Control strategy of subjective video quality over error-prone channels*" COMMUNICATION TECHNOLOGY PROCEEDINGS, 2000. WCC - ICCT 2000. INTERNATIONAL CONFERENCE ON, vol. 1, (200-08-21), pages 962-965, XP010526892, *
WENGER S: "Temporal scalability using P-pictures for low-latency applications" MULTIMEDIA SIGNAL PROCESSING, 1998 IEEE SECOND WORKSHOP ON REDONDO BEACH, CA, USA 7-9 DEC. 1998, PISCATAWAY, NJ, USA,IEEE, US, (1998-12-07), pages 559-564, XP010318327 ISBN: 0-7803-4919-9 *

Also Published As

Publication number Publication date
GB0221146D0 (en) 2002-10-23
GB2393060A (en) 2004-03-17
AU2003269142A8 (en) 2004-04-30
DE10393211T5 (en) 2005-10-13
WO2004025964A3 (en) 2004-07-29
GB2393060B (en) 2006-01-25
GB2410852B (en) 2006-01-04
GB0504586D0 (en) 2005-04-13
AU2003269142A1 (en) 2004-04-30
WO2004025964A2 (en) 2004-03-25

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100912