DK2903279T3 - Fremgangsmåde til afkodning af restblok - Google Patents

Fremgangsmåde til afkodning af restblok Download PDF

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DK2903279T3
DK2903279T3 DK15158640.1T DK15158640T DK2903279T3 DK 2903279 T3 DK2903279 T3 DK 2903279T3 DK 15158640 T DK15158640 T DK 15158640T DK 2903279 T3 DK2903279 T3 DK 2903279T3
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unit
transformation
frequency band
coding unit
size
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DK15158640.1T
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Min-Su Cheon
Jung-Hye Min
Woo-Jin Han
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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
    • H04N19/44—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
    • H04N19/10—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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • 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
    • H04N19/13—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
    • 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
    • H04N19/46—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
    • H04N19/60—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
    • H04N19/60—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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • 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
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H04N19/635—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by filter definition or implementation details
    • 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
    • H04N19/96—Tree coding, e.g. quad-tree coding

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

Claims (1)

1. Fremgangsmåde til at afkode et billede, hvor fremgangsmåden omfatter: at ekstrahere opsplitningsinformation af en nuværende kodningsenhed, som indike rer hvorvidt den nuværende kodningsenhed er opdelt i kodningsenheder af mindre dybde, fra en bitstrøm, hvor den nuværende kodningsenhed er hierarkisk opdelt fra en maksimal kodningsenhed, at ekstrahere information om en prædiktionsenhed af den nuværende kodningsenhed, der indikerer en intramodus eller en intermodus, og information om en partitionstype, der indikerer en størrelse af en prædiktionsenhed, som er tilvejebragt fra den nuværende kodningsenhed, fra bitstrømmen, når opsplitningsinformationen af den nuværende kodningsenhed indikerer, at den nuværende kodningsenhed ikke længere er opdelt i kodningsenheder af den mindre dybde, og at tilvejebringe et kodet blokflag, der indikerer hvorvidt en transformationsrestblok, som er tilvejebragt fra den nuværende kodningsenhed, indbefatter mindst én ikke-nul effektiv transformationskoefficient, fra bitstrømmen; at tilvejebringe effektive koefficientsflag for flere frekvensbåndsenheder, når det kodede blokflag indikerer, at transformationsrestblokken indbefatter mindst én ikke-nul effektiv transformationskoefficient, hvor de effektive koefficientsflag for de flere frekvensbåndsenheder er tilvejebragt fra frekvensbåndsenheder, undtaget en første frekvensbåndenhed, som svarer til det laveste frekvensbånd blandt de flere frekvensbåndsenheder, hvor de flere frekvensbåndsenheder er indbefattet i transformationsrestblokken; at tilvejebringe transformationskoefficienter for en anden frekvensbåndsenhed, baseret på et signifikanskort, der angiver placeringer af ikke-nul effektive transformationskoefficienter, som findes i den anden frekvensbåndsenhed, og niveauinformation for de ikke-nul effektive transformationskoefficienter, der findes i den anden frekvensbåndsenhed, tilvejebragt fra bitstrømmen, når et effektivt koefficientflag af den anden frekvensbåndsenhed indikerer, at den anden frekvensbåndsenhed indbefatter mindst én ikke-nul effektiv transformationskoefficient; at bestemme transformationskoefficienter for den anden frekvensbåndsenhed, som nul, når det effektive koefficientsflag for den anden frekvensbåndsenhed, indikerer, at den anden frekvensbåndsenhed ikke indbefatter mindst én ikke-nul effektiv transformationskoefficient; at tilvejebringe transformationskoefficienter for en første frekvensbåndsenhed, baseret på et signifikanskort, der angiver placeringer af ikke-nul effektive transformationskoefficienter, som findes i den første frekvensbåndsenhed, og niveauinformation for de ikke-nul effektive transformationskoefficienter, der findes i den første frekvensbåndsenhed, tilvejebragt fra bitstrømmen, når det kodede blokflag indikerer, at transformationsrestblokken indbefatter mindst én ikke-nul effektiv transformationskoefficient; at udføre en invers transformation på transformationsrestblokken; at udføre en intraprædiktion eller en interprædiktion på prædiktionsenheden, baseret på informationen om prædiktionsmodusen og informationen om partitionstypen, hvor den anden frekvensbåndsenhed er én af de flere frekvensbåndsenheder og for skellig fra den første frekvensbåndsenhed, hvor en form af den maksimale kodningsenhed er en firkant, som har en bredde og en længde i potenser af 2, hvor en form af den nuværende kodningsenhed er en firkant, og hvor en form af transformationsrestblokken er en firkant.
DK15158640.1T 2009-10-28 2010-10-28 Fremgangsmåde til afkodning af restblok DK2903279T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090102818A KR101457894B1 (ko) 2009-10-28 2009-10-28 영상 부호화 방법 및 장치, 복호화 방법 및 장치
EP10827104.0A EP2471266B1 (en) 2009-10-28 2010-10-28 Method for decoding residual block

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DK2903279T3 true DK2903279T3 (da) 2018-10-08

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Family Applications (6)

Application Number Title Priority Date Filing Date
DK15158613.8T DK2899980T3 (da) 2009-10-28 2010-10-28 Fremgangsmåde til afkodning af restblok
DK10827104.0T DK2471266T3 (da) 2009-10-28 2010-10-28 Fremgangsmåde til afkodning af restblok
DK15158612.0T DK2899979T3 (da) 2009-10-28 2010-10-28 Apparat til afkodning af en restblok.
DK18185853.1T DK3410713T3 (da) 2009-10-28 2010-10-28 Fremgangsmåde og apparat til at indkode et billede og et computerlæsbart medium, der lagrer en indkodet videobitstrøm
DK15158614.6T DK2899981T3 (da) 2009-10-28 2010-10-28 Apparat til afkodning af en restblok
DK15158640.1T DK2903279T3 (da) 2009-10-28 2010-10-28 Fremgangsmåde til afkodning af restblok

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Application Number Title Priority Date Filing Date
DK15158613.8T DK2899980T3 (da) 2009-10-28 2010-10-28 Fremgangsmåde til afkodning af restblok
DK10827104.0T DK2471266T3 (da) 2009-10-28 2010-10-28 Fremgangsmåde til afkodning af restblok
DK15158612.0T DK2899979T3 (da) 2009-10-28 2010-10-28 Apparat til afkodning af en restblok.
DK18185853.1T DK3410713T3 (da) 2009-10-28 2010-10-28 Fremgangsmåde og apparat til at indkode et billede og et computerlæsbart medium, der lagrer en indkodet videobitstrøm
DK15158614.6T DK2899981T3 (da) 2009-10-28 2010-10-28 Apparat til afkodning af en restblok

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US (6) US8811479B2 (da)
EP (6) EP2903279B1 (da)
JP (5) JP5711247B2 (da)
KR (1) KR101457894B1 (da)
CN (6) CN104796707B (da)
AU (1) AU2010313967B2 (da)
BR (5) BR122020010727B1 (da)
CA (5) CA2777587C (da)
CY (5) CY1121009T1 (da)
DK (6) DK2899980T3 (da)
ES (6) ES2688346T3 (da)
HR (5) HRP20181465T1 (da)
HU (5) HUE041701T2 (da)
LT (5) LT2899980T (da)
MX (1) MX2012004803A (da)
MY (5) MY180142A (da)
PL (6) PL2899981T3 (da)
PT (5) PT2899981T (da)
RS (5) RS57808B1 (da)
RU (5) RU2493669C1 (da)
SI (5) SI2899980T1 (da)
WO (1) WO2011053020A2 (da)
ZA (5) ZA201203084B (da)

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