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WO2008120577A1 - 画像符号化及び復号化の方法及び装置 - Google Patents

画像符号化及び復号化の方法及び装置 Download PDF

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Publication number
WO2008120577A1
WO2008120577A1 PCT/JP2008/055013 JP2008055013W WO2008120577A1 WO 2008120577 A1 WO2008120577 A1 WO 2008120577A1 JP 2008055013 W JP2008055013 W JP 2008055013W WO 2008120577 A1 WO2008120577 A1 WO 2008120577A1
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WIPO (PCT)
Prior art keywords
prediction
image
coding
pixel block
generates
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Ceased
Application number
PCT/JP2008/055013
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English (en)
French (fr)
Inventor
Naofumi Wada
Takeshi Chujoh
Tadaaki Masuda
Reiko Noda
Akiyuki Tanizawa
Goki Yasuda
Taichiro Shiodera
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Toshiba Corp
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Toshiba Corp
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Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to US12/532,057 priority Critical patent/US20100118945A1/en
Priority to JP2009507456A priority patent/JPWO2008120577A1/ja
Publication of WO2008120577A1 publication Critical patent/WO2008120577A1/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
    • H04N19/189—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
    • H04N19/19—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 using optimisation based on Lagrange multipliers
    • 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
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
    • 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
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

　画像符号化装置は、入力画像信号を符号化対象画素ブロックに分割する分割部１０１、符号化対象画素ブロックに対して再ブロック化を行い、第１画素ブロックと第２画素ブロックを生成する再ブロック化部１０２、第１画素ブロックに対して符号化済み画素に対応する第１局部復号画像を用いて予測を行い、第１予測画像を生成する第１予測部１０８Ａ、第１画素ブロックと第１予測画像との差を表す第１予測誤差を用いて第１画素ブロックに対応する第２局部復号画像を生成する生成部、第２画素ブロックに対して第１局部復号画像及び第２局部復号画像を用いて予測を行い、第２予測画像を生成する第２予測部１０８Ｂ、第１予測誤差、及び第２画素ブロックと第２予測画像との差を表す第２予測誤差を変換符号化して第１符号化データ及び第２符号化データを生成する符号化部１０３～１０５；及び第１符号化データ及び第２符号化データを多重化して符号化ビットストリームを生成する多重化部１１１を有する。
PCT/JP2008/055013 2007-03-29 2008-03-18 画像符号化及び復号化の方法及び装置 Ceased WO2008120577A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/532,057 US20100118945A1 (en) 2007-03-29 2008-03-18 Method and apparatus for video encoding and decoding
JP2009507456A JPWO2008120577A1 (ja) 2007-03-29 2008-03-18 画像符号化及び復号化の方法及び装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007087863 2007-03-29
JP2007-087863 2007-03-29

Publications (1)

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WO2008120577A1 true WO2008120577A1 (ja) 2008-10-09

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US (1) US20100118945A1 (ja)
JP (1) JPWO2008120577A1 (ja)
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WO (1) WO2008120577A1 (ja)

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JP2022112364A (ja) * 2021-01-21 2022-08-02 学校法人法政大学 イメージング装置及び測定符号化装置
JP7620308B2 (ja) 2021-01-21 2025-01-23 学校法人法政大学 イメージング装置及び測定符号化装置

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US20100118945A1 (en) 2010-05-13
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