BR112018010664A8 - previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo - Google Patents

previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo

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Publication number
BR112018010664A8
BR112018010664A8 BR112018010664A BR112018010664A BR112018010664A8 BR 112018010664 A8 BR112018010664 A8 BR 112018010664A8 BR 112018010664 A BR112018010664 A BR 112018010664A BR 112018010664 A BR112018010664 A BR 112018010664A BR 112018010664 A8 BR112018010664 A8 BR 112018010664A8
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Brazil
Prior art keywords
luma
samples
video encoder
chroma
linear model
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BR112018010664A
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English (en)
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BR112018010664A2 (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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Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112018010664A2 publication Critical patent/BR112018010664A2/pt
Publication of BR112018010664A8 publication Critical patent/BR112018010664A8/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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    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
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    • H04N19/96—Tree coding, e.g. quad-tree coding

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  • Signal Processing (AREA)
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  • Mathematical Physics (AREA)
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  • Compression Or Coding Systems Of Tv Signals (AREA)
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  • Color Television Systems (AREA)

Abstract

um codificador de vídeo reconstrói um conjunto de amostras de referência de croma e reconstrói amostras de luma de uma unidade de previsão não quadrada. adicionalmente, o codificador de vídeo produz sub-amostras do conjunto de amostras de referência de luma de tal modo que um número total das amostras de referência de luma que são vizinhas a um lado mais longo do bloco de previsão não quadrado que é o mesmo que um número total das amostras de referência de luma que são vizinhas a um lado mais curto do bloco de previsão não quadrado. o codificador de vídeo determina um parâmetro de modelo linear (lm) com base na fórmula i, onde i é um número total de amostras de referência no conjunto de amostras de referência de luma, xi é uma amostra de referência de luma no conjunto de referência de luma, yi é uma amostra de referência de croma no conjunto de amostras de referência de croma. o codificador de vídeo utiliza o parâmetro lm em um processo para determinar valores de amostras de croma do bloco de previsão não quadrado.
BR112018010664A 2015-11-25 2016-11-23 previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo BR112018010664A8 (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
US15/359,563 US20170150176A1 (en) 2015-11-25 2016-11-22 Linear-model prediction with non-square prediction units in video coding
PCT/US2016/063653 WO2017091759A1 (en) 2015-11-25 2016-11-23 Linear-model prediction with non-square prediction units in video coding

Publications (2)

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BR112018010664A2 BR112018010664A2 (pt) 2018-11-13
BR112018010664A8 true BR112018010664A8 (pt) 2019-02-26

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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
BR112018010664A BR112018010664A8 (pt) 2015-11-25 2016-11-23 previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo
BR112018010660A BR112018010660A8 (pt) 2015-11-25 2016-11-23 modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo?

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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) JP2018535610A (pt)
KR (4) KR20180084816A (pt)
CN (4) CN108293119B (pt)
AU (4) AU2016359168A1 (pt)
BR (4) BR112018010534A2 (pt)
TW (4) TW201729592A (pt)
WO (4) WO2017091770A1 (pt)

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