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WO2009001864A1 - 画像符号化装置および画像復号装置 - Google Patents

画像符号化装置および画像復号装置 Download PDF

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Publication number
WO2009001864A1
WO2009001864A1 PCT/JP2008/061566 JP2008061566W WO2009001864A1 WO 2009001864 A1 WO2009001864 A1 WO 2009001864A1 JP 2008061566 W JP2008061566 W JP 2008061566W WO 2009001864 A1 WO2009001864 A1 WO 2009001864A1
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WIPO (PCT)
Prior art keywords
encoding
prediction
section
color component
image
Prior art date
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Ceased
Application number
PCT/JP2008/061566
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English (en)
French (fr)
Inventor
Shunichi Sekiguchi
Shuuichi Yamagishi
Yoshihisa Yamada
Kohtaro Asai
Tokumichi Murakami
Yuichi Idehara
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to EP08777582.1A priority Critical patent/EP2169961B1/en
Priority to CN2008801026459A priority patent/CN101889449B/zh
Priority to HK11102133.1A priority patent/HK1148148B/xx
Priority to JP2009520618A priority patent/JP5296679B2/ja
Priority to KR1020117009137A priority patent/KR101379087B1/ko
Priority to BRPI0813996-2A priority patent/BRPI0813996B1/pt
Priority to CA2691742A priority patent/CA2691742C/en
Priority to KR1020107001743A priority patent/KR101088972B1/ko
Publication of WO2009001864A1 publication Critical patent/WO2009001864A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04N19/10—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
    • 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
    • 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
    • H04N19/102—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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • H—ELECTRICITY
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    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
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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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    • 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
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N19/186—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 colour or a chrominance component
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    • H04N19/189—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
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    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
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    • 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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
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    • 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
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    • 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
    • H04N19/91—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)
  • Color Television Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

　色成分間にサンプル比の区別のない動画像信号を符号化するにあたり、最適性を高めた符号化方法等の提供。 　入力ビットストリームを前記色成分ごとに分離する色成分分離部と、入力色成分信号を、符号化ブロックサイズ指示情報によって定まるサイズのブロックに分割して、前記符号化単位領域の信号を生成するブロック分割部と、予測画像生成方法を示すひとつ以上の予測モードに対応して前記符号化単位領域の信号に対する予測画像を生成する予測画像生成部と、該予測画像生成部から出力される予測画像の予測効率に応じて符号化に用いる予測モードを判定する判定部と、該判定部によって定められた予測モードに対応する予測画像と前記入力色成分信号との差分を符号化する予測誤差符号化部と、前記予測モードと予測誤差符号化部の出力と前記色成分分離によりどの色成分に属するかを示す色成分識別フラグとを可変長符号化する符号化部とを備える。
PCT/JP2008/061566 2007-06-28 2008-06-25 画像符号化装置および画像復号装置 Ceased WO2009001864A1 (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP08777582.1A EP2169961B1 (en) 2007-06-28 2008-06-25 Image encoder and image decoder
CN2008801026459A CN101889449B (zh) 2007-06-28 2008-06-25 图像编码装置以及图像解码装置
HK11102133.1A HK1148148B (en) 2007-06-28 2008-06-25 Image encoder and image decoder
JP2009520618A JP5296679B2 (ja) 2007-06-28 2008-06-25 画像復号装置および画像復号方法
KR1020117009137A KR101379087B1 (ko) 2007-06-28 2008-06-25 화상 부호화 장치 및 방법, 그리고 화상 복호 장치 및 방법
BRPI0813996-2A BRPI0813996B1 (pt) 2007-06-28 2008-06-25 Dispositivo de codificação de imagem para receber um sinal de imagem a cores em movimento e dispositivo de decodificação de imagem para receber um fluxo de bits obtido por compressão-codificação de um sinal de imagem a cores em movimento
CA2691742A CA2691742C (en) 2007-06-28 2008-06-25 Image encoding device and image decoding device
KR1020107001743A KR101088972B1 (ko) 2007-06-28 2008-06-25 화상 부호화 장치 및 방법

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Application Number Priority Date Filing Date Title
JP2007170330 2007-06-28
JP2007-170330 2007-06-28

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WO2009001864A1 true WO2009001864A1 (ja) 2008-12-31

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US (6) US8422803B2 (ja)
EP (2) EP2169961B1 (ja)
JP (2) JP5296679B2 (ja)
KR (2) KR101088972B1 (ja)
CN (2) CN101889449B (ja)
BR (1) BRPI0813996B1 (ja)
CA (1) CA2691742C (ja)
RU (3) RU2430486C1 (ja)
WO (1) WO2009001864A1 (ja)

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