WO2009051091A1 - 画像符号化装置及び復号装置、画像符号化方法及び復号方法、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

画像符号化装置及び復号装置、画像符号化方法及び復号方法、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
WO2009051091A1
WO2009051091A1 PCT/JP2008/068547 JP2008068547W WO2009051091A1 WO 2009051091 A1 WO2009051091 A1 WO 2009051091A1 JP 2008068547 W JP2008068547 W JP 2008068547W WO 2009051091 A1 WO2009051091 A1 WO 2009051091A1
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WO
WIPO (PCT)
Prior art keywords
image encoding
program
gradient
decoding
predicted
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PCT/JP2008/068547
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English (en)
French (fr)
Inventor
Shohei Matsuo
Seishi Takamura
Kazuto Kamikura
Yoshiyuki Yashima
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Nippon Telegraph And Telephone Corporation
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Publication date
Application filed by Nippon Telegraph And Telephone Corporation filed Critical Nippon Telegraph And Telephone Corporation
Priority to JP2009538086A priority Critical patent/JP4987085B2/ja
Priority to BRPI0818590-5A priority patent/BRPI0818590B1/pt
Priority to EP08839649A priority patent/EP2200324A4/en
Priority to CA2701893A priority patent/CA2701893C/en
Priority to EP22210634.6A priority patent/EP4164220A1/en
Priority to KR1020107007476A priority patent/KR101159292B1/ko
Priority to EP18184537.1A priority patent/EP3410712A1/en
Priority to RU2010113343/07A priority patent/RU2479940C2/ru
Priority to CN2008801115240A priority patent/CN101822062B/zh
Priority to US12/682,035 priority patent/US9008173B2/en
Publication of WO2009051091A1 publication Critical patent/WO2009051091A1/ja

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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
    • H04N19/134—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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/60—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

Abstract

　画面内予測を用いて画像を符号化する方法であって、複数の傾斜候補の中から、予測対象となる画像信号の示す画素値の傾斜を選択し、その傾斜に基づいて、予測参照画素からの距離に応じて傾斜を付けて予測信号を生成し、その予測信号に基づいて、予測対象となる画像信号を画面内符号化し、前記選択した傾斜の大きさを示す情報を符号化する。あるいは、既に符号化済みの画像信号に基づいて、予測対象となる画像信号の示す画素値の傾斜を推定し、その傾斜に基づいて、予測参照画素からの距離に応じて傾斜を付けて予測信号を生成し、その予測信号に基づいて、予測対象となる画像信号を画面内符号化する。
PCT/JP2008/068547 2007-10-15 2008-10-14 画像符号化装置及び復号装置、画像符号化方法及び復号方法、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 WO2009051091A1 (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP2009538086A JP4987085B2 (ja) 2007-10-15 2008-10-14 画像符号化装置及び復号装置、画像符号化方法及び復号方法、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
BRPI0818590-5A BRPI0818590B1 (pt) 2007-10-15 2008-10-14 aparelho de codificação de imagem, aparelho de decodificação de imagem, método de codificação de imagem e método de decodificação de imagem
EP08839649A EP2200324A4 (en) 2007-10-15 2008-10-14 PICTURE CODING DEVICE AND DECODING DEVICE, PICTURE CODING METHOD AND DECODING METHOD, PROGRAM FOR THE DEVICES AND METHOD AND RECORDING MEDIUM WITH RECORDED PROGRAM
CA2701893A CA2701893C (en) 2007-10-15 2008-10-14 Image encoding and decoding apparatuses, image encoding and decoding methods, programs thereof, and recording media recorded with the programs
EP22210634.6A EP4164220A1 (en) 2007-10-15 2008-10-14 Image encoding and decoding apparatuses, image encoding and decoding methods
KR1020107007476A KR101159292B1 (ko) 2007-10-15 2008-10-14 화상 부호화 장치 및 복호 장치, 화상 부호화 방법 및 복호 방법, 그들의 프로그램과 프로그램을 기록한 기록매체
EP18184537.1A EP3410712A1 (en) 2007-10-15 2008-10-14 Image encoding and decoding apparatuses, image encoding and decoding methods, programs thereof, and recording media recorded with the programs
RU2010113343/07A RU2479940C2 (ru) 2007-10-15 2008-10-14 Устройство кодирования и декодирования изображения, способы кодирования и декодирования изображения, их программы и носитель записи, записанный программами
CN2008801115240A CN101822062B (zh) 2007-10-15 2008-10-14 图像编码装置及解码装置、图像编码方法及解码方法
US12/682,035 US9008173B2 (en) 2007-10-15 2008-10-14 Image encoding and decoding apparatuses, image encoding and decoding methods, programs thereof, and recording media recorded with the programs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007267614 2007-10-15
JP2007-267614 2007-10-15

Publications (1)

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WO2009051091A1 true WO2009051091A1 (ja) 2009-04-23

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Country Status (10)

Country Link
US (1) US9008173B2 (ja)
EP (3) EP2200324A4 (ja)
JP (1) JP4987085B2 (ja)
KR (1) KR101159292B1 (ja)
CN (1) CN101822062B (ja)
BR (1) BRPI0818590B1 (ja)
CA (1) CA2701893C (ja)
RU (1) RU2479940C2 (ja)
TW (1) TWI415478B (ja)
WO (1) WO2009051091A1 (ja)

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EP2200324A4 (en) 2012-10-17
BRPI0818590B1 (pt) 2020-10-20
RU2479940C2 (ru) 2013-04-20
US20100208803A1 (en) 2010-08-19
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US9008173B2 (en) 2015-04-14
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