DK2869563T3 - Fremgangsmåde til entropiafkodning af video - Google Patents

Fremgangsmåde til entropiafkodning af video Download PDF

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DK2869563T3
DK2869563T3 DK13813478.8T DK13813478T DK2869563T3 DK 2869563 T3 DK2869563 T3 DK 2869563T3 DK 13813478 T DK13813478 T DK 13813478T DK 2869563 T3 DK2869563 T3 DK 2869563T3
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transformation
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DK13813478.8T
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Il-Koo Kim
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Samsung Electronics Co Ltd
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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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/134—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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • 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
    • H04N19/176—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
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • 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
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

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

Claims (1)

1. Fremgangsmåde til afkodning af video, hvor fremgangsmåden omfatter: at tilvejebringe (2720) et opsplitningsinformationsflag for en aktuel dybde fra en bitstrøm, og, når opsplitningsinformationsflaget indikerer en ikke-opsplitning af den aktuelle dybde, at bestemme at en transformationsdybde er lig med den aktuelle dybde; at tilvejebringe mindst én transformationsenhed fra en kodningsenhed baseret på opsplitningsinformationsflaget; at bestemme (2730) en kontekstforøgelsesparameter til at bestemme et kontekstindeks kun baseret på, hvorvidt transformationsdybden er lig med nul eller ej, og at tilvejebringe en kontekstmodel til aritmetisk afkodning af et transformationsenhedsbetydningsfuldt flag af en lumakomponent, der indikerer hvorvidt en ikke-nul transformationsenhed eksisterer i transformationsenheden af lumakomponenten, ved at anvende kontekstindekset tilvejebragt ved at addere kontekstforøgelsesparameteren og et kontekstoffset; at afkode (2740) det transformationsenhedsbetydningsfulde koefficientsflag aritmetisk baseret på den bestemte kontekstmodel; og at bestemme hvorvidt mindst én ikke-nul transformationskoefficient eksisterer i transformationsenheden af transformationsdybden baseret på det transformationsenhedsbetydningsfulde koefficientsflag, hvor bestemmelsen af kontekstforøgelsesparameteren yderligere omfatter: at bestemme kontekstforøgelsesparameteren til en, når transformationsdybden er lig med nul; og at bestemme kontekstforøgelsesparameteren til nul, når transformationsdybden ikke er lig med nul, hvor at, når opsplitningstransformationsflaget indikerer en opsplitning for den aktuelle dybde, en transformationsenhed af den aktuelle dybde opsplittes til én eller flere transformationsenheder af den næste dybde, og et opsplitningstransformationsflag for den næste dybde tilvejebringes fra bitstrømmen.
DK13813478.8T 2012-07-02 2013-07-02 Fremgangsmåde til entropiafkodning af video DK2869563T3 (da)

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US201261667117P 2012-07-02 2012-07-02
PCT/KR2013/005870 WO2014007524A1 (ko) 2012-07-02 2013-07-02 비디오의 엔트로피 부호화 방법 및 장치, 비디오의 엔트로피 복호화 방법 및 장치

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DK18165272.8T DK3361733T3 (da) 2012-07-02 2013-07-02 Entropikodning af en video og entropiafkodning af en video
DK18165273.6T DK3361734T3 (da) 2012-07-02 2013-07-02 Entropikodning af en video og entropiafkodning af en video
DK13813478.8T DK2869563T3 (da) 2012-07-02 2013-07-02 Fremgangsmåde til entropiafkodning af video
DK18165274.4T DK3361735T3 (da) 2012-07-02 2013-07-02 Entropikodning af en video og entropiafkodning af en video
DK18165271.0T DK3361732T3 (da) 2012-07-02 2013-07-02 Entropikodning af en video og entropiafkodning af en video

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US (5) US9407936B2 (da)
EP (5) EP3361732B1 (da)
JP (3) JP6014823B2 (da)
KR (12) KR101484283B1 (da)
CN (7) CN105007489A (da)
AU (4) AU2013285752B2 (da)
BR (3) BR122020009714B1 (da)
CA (2) CA2988167C (da)
CY (1) CY1120791T1 (da)
DK (5) DK3361733T3 (da)
ES (5) ES2768086T3 (da)
HR (1) HRP20180927T1 (da)
HU (3) HUE039986T2 (da)
IN (1) IN2015MN00021A (da)
LT (1) LT2869563T (da)
MX (1) MX347473B (da)
MY (6) MY200990A (da)
PH (5) PH12018500781A1 (da)
PL (5) PL3361733T3 (da)
PT (1) PT2869563T (da)
RS (1) RS57336B1 (da)
RU (3) RU2612624C2 (da)
SG (4) SG11201408336RA (da)
SI (1) SI2869563T1 (da)
TR (1) TR201808497T4 (da)
TW (3) TWI655859B (da)
WO (1) WO2014007524A1 (da)
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