CN104025457B - 用于最后有效系数位置译码的上下文最优化 - Google Patents

用于最后有效系数位置译码的上下文最优化 Download PDF

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CN104025457B
CN104025457B CN201280054851.3A CN201280054851A CN104025457B CN 104025457 B CN104025457 B CN 104025457B CN 201280054851 A CN201280054851 A CN 201280054851A CN 104025457 B CN104025457 B CN 104025457B
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context
binary
block
transform block
transform
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CN104025457A (zh
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郭立威
钱威俊
马尔塔·卡切维奇
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Qualcomm Inc
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4006—Conversion to or from arithmetic code
    • H03M7/4012—Binary arithmetic codes
    • H03M7/4018—Context adapative binary arithmetic codes [CABAC]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4031—Fixed length to variable length coding
    • H03M7/4037—Prefix 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
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/18—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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CN201280054851.3A 2011-11-08 2012-11-06 用于最后有效系数位置译码的上下文最优化 Active CN104025457B (zh)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US201161557317P 2011-11-08 2011-11-08
US61/557,317 2011-11-08
US201161561909P 2011-11-20 2011-11-20
US61/561,909 2011-11-20
US201261588579P 2012-01-19 2012-01-19
US61/588,579 2012-01-19
US201261596049P 2012-02-07 2012-02-07
US61/596,049 2012-02-07
US13/669,096 US9357185B2 (en) 2011-11-08 2012-11-05 Context optimization for last significant coefficient position coding
US13/669,096 2012-11-05
PCT/US2012/063717 WO2013070610A1 (en) 2011-11-08 2012-11-06 Context optimization for last significant coefficient position coding

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CN104025457A CN104025457A (zh) 2014-09-03
CN104025457B true CN104025457B (zh) 2017-06-30

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US (1) US9357185B2 (https=)
EP (3) EP3637768B1 (https=)
JP (1) JP5955974B2 (https=)
KR (1) KR101677356B1 (https=)
CN (1) CN104025457B (https=)
AU (1) AU2012336023B2 (https=)
BR (2) BR112014011062B1 (https=)
CA (1) CA2854816C (https=)
ES (1) ES2700523T3 (https=)
IL (1) IL232331A (https=)
IN (1) IN2014CN03431A (https=)
MY (1) MY168322A (https=)
PH (1) PH12014500948A1 (https=)
RU (1) RU2586002C2 (https=)
SG (1) SG11201401614TA (https=)
WO (1) WO2013070610A1 (https=)

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Publication number Publication date
ES2700523T3 (es) 2019-02-18
CA2854816C (en) 2017-06-06
EP3439305B1 (en) 2020-03-11
PH12014500948A1 (en) 2017-07-19
RU2586002C2 (ru) 2016-06-10
BR112014011062B1 (pt) 2021-06-29
EP2777163B1 (en) 2018-10-10
JP2015502080A (ja) 2015-01-19
BR112014011062A2 (pt) 2017-06-13
JP5955974B2 (ja) 2016-07-20
US20130114676A1 (en) 2013-05-09
SG11201401614TA (en) 2014-07-30
CN104025457A (zh) 2014-09-03
IN2014CN03431A (https=) 2015-09-04
BR112014011062A8 (pt) 2017-06-20
EP3637768B1 (en) 2021-04-21
EP3637768A1 (en) 2020-04-15
AU2012336023B2 (en) 2016-01-07
KR20140098120A (ko) 2014-08-07
IL232331A0 (en) 2014-06-30
MY168322A (en) 2018-10-30
IL232331A (en) 2017-05-29
US9357185B2 (en) 2016-05-31
WO2013070610A1 (en) 2013-05-16
BR122020003135B1 (pt) 2021-07-06
KR101677356B1 (ko) 2016-11-17
CA2854816A1 (en) 2013-05-16
AU2012336023A1 (en) 2014-05-22
RU2014123383A (ru) 2015-12-20
EP2777163A1 (en) 2014-09-17
EP3439305A1 (en) 2019-02-06

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