GB2534604B - Video encoding and decoding with adaptive quantisation - Google Patents

Video encoding and decoding with adaptive quantisation Download PDF

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Publication number
GB2534604B
GB2534604B GB1501505.0A GB201501505A GB2534604B GB 2534604 B GB2534604 B GB 2534604B GB 201501505 A GB201501505 A GB 201501505A GB 2534604 B GB2534604 B GB 2534604B
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United Kingdom
Prior art keywords
decoding
video encoding
adaptive quantisation
quantisation
adaptive
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Active
Application number
GB1501505.0A
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GB201501505D0 (en
GB2534604A (en
Inventor
Naccari Matteo
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.)
British Broadcasting Corp
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British Broadcasting Corp
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Publication date
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Priority to GB1501505.0A priority Critical patent/GB2534604B/en
Publication of GB201501505D0 publication Critical patent/GB201501505D0/en
Priority to PCT/GB2016/050197 priority patent/WO2016120630A1/en
Publication of GB2534604A publication Critical patent/GB2534604A/en
Application granted granted Critical
Publication of GB2534604B publication Critical patent/GB2534604B/en
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    • 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
    • H04N19/169—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
    • H04N19/102—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
    • H04N19/136—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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/18—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 set of transform coefficients
    • 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
    • H04N19/182—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 pixel
    • 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
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
GB1501505.0A 2015-01-29 2015-01-29 Video encoding and decoding with adaptive quantisation Active GB2534604B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1501505.0A GB2534604B (en) 2015-01-29 2015-01-29 Video encoding and decoding with adaptive quantisation
PCT/GB2016/050197 WO2016120630A1 (en) 2015-01-29 2016-01-29 Video encoding and decoding with adaptive quantisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1501505.0A GB2534604B (en) 2015-01-29 2015-01-29 Video encoding and decoding with adaptive quantisation

Publications (3)

Publication Number Publication Date
GB201501505D0 GB201501505D0 (en) 2015-03-18
GB2534604A GB2534604A (en) 2016-08-03
GB2534604B true GB2534604B (en) 2021-11-10

Family

ID=52705463

Family Applications (1)

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GB1501505.0A Active GB2534604B (en) 2015-01-29 2015-01-29 Video encoding and decoding with adaptive quantisation

Country Status (2)

Country Link
GB (1) GB2534604B (en)
WO (1) WO2016120630A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0440189A (en) * 1990-06-05 1992-02-10 Matsushita Electric Ind Co Ltd Quantizer
WO2006007279A2 (en) * 2004-06-18 2006-01-19 Thomson Licensing Method and apparatus for video codec quantization
US20080240235A1 (en) * 2007-03-26 2008-10-02 Microsoft Corporation Adaptive deadzone size adjustment in quantization
US20110075729A1 (en) * 2006-12-28 2011-03-31 Gokce Dane method and apparatus for automatic visual artifact analysis and artifact reduction
US20120051421A1 (en) * 2009-05-16 2012-03-01 Xiaoan Lu Methods and apparatus for improved quantization rounding offset adjustment for video encoding and decoding
US20120307890A1 (en) * 2011-06-02 2012-12-06 Microsoft Corporation Techniques for adaptive rounding offset in video encoding

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070237237A1 (en) * 2006-04-07 2007-10-11 Microsoft Corporation Gradient slope detection for video compression

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0440189A (en) * 1990-06-05 1992-02-10 Matsushita Electric Ind Co Ltd Quantizer
WO2006007279A2 (en) * 2004-06-18 2006-01-19 Thomson Licensing Method and apparatus for video codec quantization
US20110075729A1 (en) * 2006-12-28 2011-03-31 Gokce Dane method and apparatus for automatic visual artifact analysis and artifact reduction
US20080240235A1 (en) * 2007-03-26 2008-10-02 Microsoft Corporation Adaptive deadzone size adjustment in quantization
US20120051421A1 (en) * 2009-05-16 2012-03-01 Xiaoan Lu Methods and apparatus for improved quantization rounding offset adjustment for video encoding and decoding
US20120307890A1 (en) * 2011-06-02 2012-12-06 Microsoft Corporation Techniques for adaptive rounding offset in video encoding

Also Published As

Publication number Publication date
WO2016120630A1 (en) 2016-08-04
GB201501505D0 (en) 2015-03-18
GB2534604A (en) 2016-08-03

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