WO2008111744A1 - Procédé et appareil destinés à coder et décoder une image en domaine de pixel - Google Patents

Procédé et appareil destinés à coder et décoder une image en domaine de pixel Download PDF

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Publication number
WO2008111744A1
WO2008111744A1 PCT/KR2008/001115 KR2008001115W WO2008111744A1 WO 2008111744 A1 WO2008111744 A1 WO 2008111744A1 KR 2008001115 W KR2008001115 W KR 2008001115W WO 2008111744 A1 WO2008111744 A1 WO 2008111744A1
Authority
WO
WIPO (PCT)
Prior art keywords
residual
block
residual block
prediction
encoding
Prior art date
Application number
PCT/KR2008/001115
Other languages
English (en)
Inventor
Hae-Kwang Kim
Original Assignee
Industry-Academia Cooperation Group Of Sejong University
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
Priority claimed from KR1020080016061A external-priority patent/KR100939358B1/ko
Application filed by Industry-Academia Cooperation Group Of Sejong University filed Critical Industry-Academia Cooperation Group Of Sejong University
Publication of WO2008111744A1 publication Critical patent/WO2008111744A1/fr

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Classifications

    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/169—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
    • H04N19/60—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
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

Abstract

L'invention concerne un procédé et un appareil destinés à coder et à décoder une image. Le procédé de codage d'une image consiste: à produire un premier bloc résiduel d'un bloc de courant au moyen de l'intraprédiction et de l'interprédiction; à coder à perte le premier bloc résiduel en domaine de fréquence; à décoder le premier bloc résiduel codé et à restaurer un second bloc résiduel en domaine de pixel; et à coder de façon entropique le second bloc résiduel restauré. Ainsi, une image peut aisément être restaurée sur la base de l'addition et de la réduction de domaine de pixel sans opérations d'inversion de complexe dans le domaine de fréquence lors du décodage de l'image codée.
PCT/KR2008/001115 2007-03-13 2008-02-26 Procédé et appareil destinés à coder et décoder une image en domaine de pixel WO2008111744A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20070024266 2007-03-13
KR10-2007-0024266 2007-03-13
KR10-2008-0016061 2008-02-22
KR1020080016061A KR100939358B1 (ko) 2007-03-13 2008-02-22 픽셀 도메인에서 영상을 부호화, 복호화하는 방법 및 장치

Publications (1)

Publication Number Publication Date
WO2008111744A1 true WO2008111744A1 (fr) 2008-09-18

Family

ID=39759660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/001115 WO2008111744A1 (fr) 2007-03-13 2008-02-26 Procédé et appareil destinés à coder et décoder une image en domaine de pixel

Country Status (1)

Country Link
WO (1) WO2008111744A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091504A1 (fr) 2009-02-13 2010-08-19 Research In Motion Limited Décomposition de bloc en boucle pour des images ou des trames intra-codées
US8934543B2 (en) 2009-02-13 2015-01-13 Blackberry Limited Adaptive quantization with balanced pixel-domain distortion distribution in image processing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050025245A1 (en) * 2003-07-30 2005-02-03 Ankur Varma Reversible diffusion-based compression
US20060256866A1 (en) * 2005-05-13 2006-11-16 Streaming Networks (Pvt.) Ltd. Method and system for providing bi-directionally predicted video coding
US20060277040A1 (en) * 2005-05-30 2006-12-07 Jong-Mo Sung Apparatus and method for coding and decoding residual signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050025245A1 (en) * 2003-07-30 2005-02-03 Ankur Varma Reversible diffusion-based compression
US20060256866A1 (en) * 2005-05-13 2006-11-16 Streaming Networks (Pvt.) Ltd. Method and system for providing bi-directionally predicted video coding
US20060277040A1 (en) * 2005-05-30 2006-12-07 Jong-Mo Sung Apparatus and method for coding and decoding residual signal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091504A1 (fr) 2009-02-13 2010-08-19 Research In Motion Limited Décomposition de bloc en boucle pour des images ou des trames intra-codées
EP2396771A1 (fr) * 2009-02-13 2011-12-21 Research In Motion Limited Décomposition de bloc en boucle pour des images ou des trames intra-codées
EP2396771A4 (fr) * 2009-02-13 2012-12-12 Research In Motion Ltd Décomposition de bloc en boucle pour des images ou des trames intra-codées
US8934543B2 (en) 2009-02-13 2015-01-13 Blackberry Limited Adaptive quantization with balanced pixel-domain distortion distribution in image processing

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