BR112013002055A2 - direção de predição de movimento de codificação em codificação de vídeo - Google Patents

direção de predição de movimento de codificação em codificação de vídeo

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Publication number
BR112013002055A2
BR112013002055A2 BR112013002055A BR112013002055A BR112013002055A2 BR 112013002055 A2 BR112013002055 A2 BR 112013002055A2 BR 112013002055 A BR112013002055 A BR 112013002055A BR 112013002055 A BR112013002055 A BR 112013002055A BR 112013002055 A2 BR112013002055 A2 BR 112013002055A2
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Brazil
Prior art keywords
reference image
prediction
lists
coding
video
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BR112013002055A
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English (en)
Inventor
Karczewicz Marta
Z Coban Muhammed
Chen Peisong
Chien Wei-Jung
Wang Xianglin
Chen Ying
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Qualcomm Inc
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Publication of BR112013002055A2 publication Critical patent/BR112013002055A2/pt

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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
    • H04N19/50—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
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
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    • 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
    • H04N19/114—Adapting the group of pictures [GOP] structure, e.g. number of B-frames between two anchor frames
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    • 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
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    • 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
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    • H04N19/177—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 group of pictures [GOP]
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    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
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    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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    • 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
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    • 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)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

direção de predição de movimento de codificação em codificação de vídeo. esta descrição refere-se a técnicas para reduzir um ucs to de codificação de informação de predição em codificação de vídeo. blocos de vídeo em um quadro p/b generalizado (gpb) são codificados utilizanto até dois vetores de movimento calculados a partir de imagem de referência em duas listas de imagem de referência separadas que são idênticas. quando uma das listas de imagem de referência é preferível á outra lista de imagem de referência é preferível á outra lista de imagem de referência, a lista de imagem de referência preferida pode ser utilizada para predição unidirecional, por padrão. quando um quadro gpb é habilitado de tal modo que a primeira e segunda listas de imagem de referência são idênticas, qualquer uma da primeira e segunda listas de imagem de referência podem ser utilizadas para a predição unidirecional. as técnicas de codificação incluem um ou mais elementos de sintaxe indicando que um bloco de vídeo é codificado utilizando um dos modos de predição unidirecional em relação a uma imagem de referência em uma lista de imagem de referência e o modo de predição bidirecional utilizando menos do que dois bits.
BR112013002055A 2010-07-28 2011-07-20 direção de predição de movimento de codificação em codificação de vídeo BR112013002055A2 (pt)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US36852910P 2010-07-28 2010-07-28
US37658310P 2010-08-24 2010-08-24
US37930310P 2010-09-01 2010-09-01
US40738910P 2010-10-27 2010-10-27
US41466810P 2010-11-17 2010-11-17
US201161500029P 2011-06-22 2011-06-22
US13/179,400 US9398308B2 (en) 2010-07-28 2011-07-08 Coding motion prediction direction in video coding
PCT/US2011/044732 WO2012015650A2 (en) 2010-07-28 2011-07-20 Coding motion prediction direction in video coding

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BR112013002055A2 true BR112013002055A2 (pt) 2019-09-24

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US (2) US9398308B2 (pt)
EP (3) EP2599313B1 (pt)
JP (2) JP5951606B2 (pt)
KR (2) KR101460921B1 (pt)
CN (2) CN103026709B (pt)
AU (1) AU2011283039A1 (pt)
BR (1) BR112013002055A2 (pt)
CA (1) CA2805883A1 (pt)
RU (1) RU2013108810A (pt)
SG (1) SG187137A1 (pt)
TW (2) TW201223286A (pt)
WO (2) WO2012015649A2 (pt)

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