WO2009054347A1 - 動画像スケーラブル符号化方法及び復号方法、それらの装置、それらのプログラム並びにプログラムを記録した記録媒体 - Google Patents

動画像スケーラブル符号化方法及び復号方法、それらの装置、それらのプログラム並びにプログラムを記録した記録媒体 Download PDF

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Publication number
WO2009054347A1
WO2009054347A1 PCT/JP2008/068971 JP2008068971W WO2009054347A1 WO 2009054347 A1 WO2009054347 A1 WO 2009054347A1 JP 2008068971 W JP2008068971 W JP 2008068971W WO 2009054347 A1 WO2009054347 A1 WO 2009054347A1
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image region
immediately
weight coefficient
referenced
therefor
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PCT/JP2008/068971
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English (en)
French (fr)
Inventor
Kazuya Hayase
Yukihiro Bandoh
Seishi Takamura
Kazuto Kamikura
Yoshiyuki Yashima
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NTT Inc
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Nippon Telegraph and Telephone Corp
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Priority to KR1020107008045A priority Critical patent/KR101123285B1/ko
Priority to CN2008801128274A priority patent/CN101836457B/zh
Priority to EP08841336.4A priority patent/EP2202984B1/en
Priority to JP2009538193A priority patent/JP5261774B2/ja
Priority to ES08841336.4T priority patent/ES2634162T3/es
Priority to US12/682,370 priority patent/US8548039B2/en
Priority to BRPI0818665A priority patent/BRPI0818665A2/pt
Priority to CA2702525A priority patent/CA2702525C/en
Publication of WO2009054347A1 publication Critical patent/WO2009054347A1/ja
Anticipated expiration legal-status Critical
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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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/169—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
    • H04N19/187—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 scalable video layer
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/33—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the spatial domain

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

　上位レイヤの符号化対象画像領域と被参照画像領域との間の明るさの変化を示す比例係数とオフセット係数からなる重み係数を算出して、その重み係数を探索対象となる被参照画像領域の画像信号に演算して動きの推定を行うことで動きベクトルを算出し、その動きベクトルの指す被参照画像領域の復号信号にその重み係数を演算して動き補償を行うことで予測信号を生成する動画像スケーラブル符号化方法。直下レイヤにおいて符号化対象画像領域と空間的同位置に存在する直下画像領域の符号化情報に基づいて、前記重み係数のデータ構造を決定し、直下画像領域が直下レイヤにおいて画面間予測を行っていた場合に、直下画像領域が動き予測の予測参照先とした直下レイヤ被参照画像領域を同定し、その直下レイヤ被参照画像領域と空間的同位置に存在する上位レイヤの画像領域の直流成分に対して、直下画像領域が重み付き動き予測の際に利用した重み係数を演算したものを直下画像領域の直流成分とみなして、前記重み係数を算出する。
PCT/JP2008/068971 2007-10-25 2008-10-20 動画像スケーラブル符号化方法及び復号方法、それらの装置、それらのプログラム並びにプログラムを記録した記録媒体 Ceased WO2009054347A1 (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
KR1020107008045A KR101123285B1 (ko) 2007-10-25 2008-10-20 동화상 스케일러블 부호화 방법 및 복호 방법, 그 장치, 그 프로그램 및 프로그램을 기록한 기록매체
CN2008801128274A CN101836457B (zh) 2007-10-25 2008-10-20 活动图像可分级编码方法及解码方法及其装置
EP08841336.4A EP2202984B1 (en) 2007-10-25 2008-10-20 Video scalable encoding method and decoding methods using weighted prediction, devices therefor, programs therefor, and recording medium where program is recorded
JP2009538193A JP5261774B2 (ja) 2007-10-25 2008-10-20 動画像スケーラブル符号化方法及び復号方法、それらの装置、それらのプログラム並びにプログラムを記録した記録媒体
ES08841336.4T ES2634162T3 (es) 2007-10-25 2008-10-20 Método de codificación escalable de vídeo y métodos de decodificación que utilizan predicción ponderada, dispositivos para ello, programas para ello, y medio de grabación donde se graba el programa
US12/682,370 US8548039B2 (en) 2007-10-25 2008-10-20 Video scalable encoding method and decoding method, apparatuses therefor, programs therefor, and recording media where programs are recorded
BRPI0818665A BRPI0818665A2 (pt) 2007-10-25 2008-10-20 método de codificação e método de decodificação de vídeo escalável, aparelho para os mesmos, programas para os mesmos e meio de gravação onde os programas são gravados
CA2702525A CA2702525C (en) 2007-10-25 2008-10-20 Video scalable encoding method and decoding method and apparatuses therefor

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JP2007-277224 2007-10-25
JP2007277224 2007-10-25

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WO2009054347A1 true WO2009054347A1 (ja) 2009-04-30

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US (1) US8548039B2 (ja)
EP (1) EP2202984B1 (ja)
JP (1) JP5261774B2 (ja)
KR (1) KR101123285B1 (ja)
CN (1) CN101836457B (ja)
BR (1) BRPI0818665A2 (ja)
CA (1) CA2702525C (ja)
ES (1) ES2634162T3 (ja)
RU (1) RU2461978C2 (ja)
TW (1) TWI384885B (ja)
WO (1) WO2009054347A1 (ja)

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JP2012533212A (ja) * 2009-07-09 2012-12-20 クゥアルコム・インコーポレイテッド ビデオコーディングにおける単方向予測および双方向予測のための異なる重み付け
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KR20100066560A (ko) 2010-06-17
CN101836457B (zh) 2012-07-11
CN101836457A (zh) 2010-09-15
JP5261774B2 (ja) 2013-08-14
US20100215095A1 (en) 2010-08-26
CA2702525C (en) 2014-07-15
ES2634162T3 (es) 2017-09-26
EP2202984A1 (en) 2010-06-30
CA2702525A1 (en) 2009-04-30
TW200935919A (en) 2009-08-16
EP2202984A4 (en) 2011-08-17
EP2202984B1 (en) 2017-04-19
US8548039B2 (en) 2013-10-01
RU2461978C2 (ru) 2012-09-20
JPWO2009054347A1 (ja) 2011-03-03
TWI384885B (zh) 2013-02-01
BRPI0818665A2 (pt) 2015-09-08
KR101123285B1 (ko) 2012-03-20
RU2010114733A (ru) 2011-11-10

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