BR112013029425A2 - método de decodificação de imagem, método de codificação de imagem, dispositivo de decodificação de imagem, dispositivo de codificação de imagem, e dispositivo de codificação/decodificação de imagem - Google Patents

método de decodificação de imagem, método de codificação de imagem, dispositivo de decodificação de imagem, dispositivo de codificação de imagem, e dispositivo de codificação/decodificação de imagem

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Publication number
BR112013029425A2
BR112013029425A2 BR112013029425A BR112013029425A BR112013029425A2 BR 112013029425 A2 BR112013029425 A2 BR 112013029425A2 BR 112013029425 A BR112013029425 A BR 112013029425A BR 112013029425 A BR112013029425 A BR 112013029425A BR 112013029425 A2 BR112013029425 A2 BR 112013029425A2
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Brazil
Prior art keywords
image
decoding
image encoding
candidates
decoding device
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BR112013029425A
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English (en)
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BR112013029425B1 (pt
BR112013029425A8 (pt
Inventor
Sasai Hisao
Tanikawa Kyoko
Nishi Takahiro
Matsunobu Toru
Sugio Toshiyasu
Shibahara Youji
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Panasonic Corp
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Publication of BR112013029425A2 publication Critical patent/BR112013029425A2/pt
Publication of BR112013029425A8 publication Critical patent/BR112013029425A8/pt
Publication of BR112013029425B1 publication Critical patent/BR112013029425B1/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
    • 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
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for 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
    • H04N19/102—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
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/50—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
    • H04N19/50—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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • 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

Abstract

resumo patente de invenção: "método de decodificação de imagem, método de codificação de imagem, dispositivo de decodificação de imagem, dispositivo de codificação de imagem, e dispositivo de codificação/decodificação de imagem". a presente invenção refere-se a um método de decodificação de imagem para decodificação, bloco por bloco, de dados de imagem incluídos em uma corrente de bits codificada inclui: a obtenção de um número fixo de candidatos à mistura, cada um dos quais é um conjunto de candidatos de uma direção de previsão, um vetor de movimento, e um índice de imagem de referência que devem ser referidos na decodificação de um bloco atual; e obtenção, a partir da corente de bits codificada, um índice para identificação de um candidato à mistura para o bloco atual, onde o número fixo de candidatos à mistura inclui: um ou mais primeiros candidatos, cada um derivado com base em uma direção de previsão, um vetor de movimento, e um índice de imagem de referência que foram utilizados para decodificação de um bloco vizinho espacialmente ou temporalmente vizinho ao bloco atual; e um ou mais segundos candidatos possuindo um número predeterminado fixo. o número fixo é superior a ou igual a dois.
BR112013029425-6A 2011-06-30 2012-06-28 Método de decodificação de imagem, método de codificação de imagem, dispositivo de decodificação de imagem, dispositivo de codificação de imagem, e dispositivo de codifica ção/decodificação de imagem BR112013029425B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161503074P 2011-06-30 2011-06-30
US61/503,074 2011-06-30
PCT/JP2012/004189 WO2013001818A1 (ja) 2011-06-30 2012-06-28 画像復号方法、画像符号化方法、画像復号装置、画像符号化装置、および、画像符号化復号装置

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BR112013029425A2 true BR112013029425A2 (pt) 2017-01-31
BR112013029425A8 BR112013029425A8 (pt) 2017-07-11
BR112013029425B1 BR112013029425B1 (pt) 2022-03-29

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US (2) US20130003850A1 (pt)
EP (1) EP2728878B1 (pt)
JP (4) JP5937594B2 (pt)
KR (1) KR101900986B1 (pt)
CN (2) CN106851269B (pt)
BR (1) BR112013029425B1 (pt)
CA (1) CA2836063C (pt)
ES (1) ES2781868T3 (pt)
MX (1) MX2013013029A (pt)
MY (1) MY181718A (pt)
PL (1) PL2728878T3 (pt)
TW (1) TW201311006A (pt)
WO (1) WO2013001818A1 (pt)

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