BR112018010660A2 - modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo? - Google Patents

modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo?

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Publication number
BR112018010660A2
BR112018010660A2 BR112018010660A BR112018010660A BR112018010660A2 BR 112018010660 A2 BR112018010660 A2 BR 112018010660A2 BR 112018010660 A BR112018010660 A BR 112018010660A BR 112018010660 A BR112018010660 A BR 112018010660A BR 112018010660 A2 BR112018010660 A2 BR 112018010660A2
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Brazil
Prior art keywords
transform
disquantized
coefficients
square
transform coefficients
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BR112018010660A
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English (en)
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BR112018010660A8 (pt
Inventor
Jin Guoxin
Chen Jianle
Zhang Li
Karczewicz Marta
Chao Pang
Chien Wei-Jung
Li Xiang
Zhao Xin
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Qualcomm Inc
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Publication of BR112018010660A2 publication Critical patent/BR112018010660A2/pt
Publication of BR112018010660A8 publication Critical patent/BR112018010660A8/pt

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    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/649—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding the transform being applied to non rectangular image segments
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    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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Abstract

como parte de um processo de codificação de dados de vídeo, um codificador de vídeo aplica uma transformada a um bloco residual não-quadrado para gerar um bloco de coeficientes de transformada. adicionalmente, o codificador de vídeomodifica os coeficientes de transformada de modo que cada respectivo coeficiente de transformada do bloco de coeficientes de transformada se baseie no respectivo coeficiente de transformada desquantizado multiplicado por um fator v2 ou uma aproximação de v2. como parte de um processo de decodificação de dados de vídeo, um decodificador de vídeo aplica, pelo decodificador de vídeo, um processo de desquantização para transformar os coeficientes de um bloco de transformada não-quadrado. o decodificador de vídeo modifica os coeficientes de transformada desquantizados de modo que cada respectivo coeficiente de transformada desquantizado dos coeficientes de transformada desquantizados se baseie no respectivo coeficiente de transformada desquantizado dividido por um fator v2 ou uma aproximação de v2.
BR112018010660A 2015-11-25 2016-11-23 modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo? BR112018010660A8 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201562260103P 2015-11-25 2015-11-25
US201662310271P 2016-03-18 2016-03-18
US15/359,568 US10200719B2 (en) 2015-11-25 2016-11-22 Modification of transform coefficients for non-square transform units in video coding
PCT/US2016/063672 WO2017091770A1 (en) 2015-11-25 2016-11-23 Modification of transform coefficients for non-square transform units in video coding

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BR112018010660A2 true BR112018010660A2 (pt) 2018-11-13
BR112018010660A8 BR112018010660A8 (pt) 2019-02-26

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BR112018010660A BR112018010660A8 (pt) 2015-11-25 2016-11-23 modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo?
BR112018010664A BR112018010664A8 (pt) 2015-11-25 2016-11-23 previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo
BR112018010534A BR112018010534A2 (pt) 2015-11-25 2016-11-23 compensação de iluminação com blocos preditivos não quadrados em codificação de vídeo
BR112018010517A BR112018010517A2 (pt) 2015-11-25 2016-11-23 estrutura de árvore de transformada flexível em codificação de vídeos

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BR112018010664A BR112018010664A8 (pt) 2015-11-25 2016-11-23 previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo
BR112018010534A BR112018010534A2 (pt) 2015-11-25 2016-11-23 compensação de iluminação com blocos preditivos não quadrados em codificação de vídeo
BR112018010517A BR112018010517A2 (pt) 2015-11-25 2016-11-23 estrutura de árvore de transformada flexível em codificação de vídeos

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US (4) US20170150156A1 (pt)
EP (4) EP3381186A1 (pt)
JP (4) JP2018535609A (pt)
KR (4) KR20180084813A (pt)
CN (4) CN108464002A (pt)
AU (4) AU2016359171A1 (pt)
BR (4) BR112018010660A8 (pt)
TW (4) TW201729593A (pt)
WO (4) WO2017091759A1 (pt)

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