WO2011069831A1 - Procédé et appareil permettant de coder et de décoder un bloc image - Google Patents

Procédé et appareil permettant de coder et de décoder un bloc image Download PDF

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Publication number
WO2011069831A1
WO2011069831A1 PCT/EP2010/068181 EP2010068181W WO2011069831A1 WO 2011069831 A1 WO2011069831 A1 WO 2011069831A1 EP 2010068181 W EP2010068181 W EP 2010068181W WO 2011069831 A1 WO2011069831 A1 WO 2011069831A1
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WO
WIPO (PCT)
Prior art keywords
block
item
motion data
template
prediction
Prior art date
Application number
PCT/EP2010/068181
Other languages
English (en)
Inventor
Edouard Francois
Dominique Thoreau
Jérôme Vieron
Philippe Bordes
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Priority to US13/514,989 priority Critical patent/US9781446B2/en
Priority to EP10782289.2A priority patent/EP2510694B1/fr
Publication of WO2011069831A1 publication Critical patent/WO2011069831A1/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
    • H04N19/50—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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • 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
    • H04N19/134—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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/17—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
    • H04N19/46—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
    • H04N19/503—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
    • 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

Definitions

  • the coefficient is equal to 0.5.
  • - figure 1 shows a method for prediction of a current block according to a first method of the prior art
  • - figure 2 shows a method for prediction of a current block according to a second method of the prior art
  • MVtmp is thus the item of motion data that minimises a distortion equal to the sum of the first distortion D1 and a second distortion D2 weighted by the coefficient 'a', the second distortion D2 being calculated between the first prediction block PrO and the second prediction block Pr1 .

Landscapes

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

Abstract

L'invention se rapporte à un procédé de reconstruction comprenant les étapes consistant à : reconstruire (10) pour le bloc actuel un premier élément de données de mouvement (MVc) à partir d'un flux de données codées ; identifier (12) un premier bloc de prédiction (Pr0) avec le premier élément de données de mouvement (MVc) ; déterminer (14) un second élément de données de mouvement par mise en correspondance d'un modèle ; identifier (16) un second bloc de prédiction (Pr1) avec le second élément de données de mouvement ; et reconstruire (18) le bloc actuel à partir des premier et second blocs de prédiction. L'étape de détermination du second élément de données de mouvement dépend de la première distorsion calculée entre le premier bloc de prédiction (Pr0) et le second bloc de prédiction (Pr1).
PCT/EP2010/068181 2009-12-10 2010-11-25 Procédé et appareil permettant de coder et de décoder un bloc image WO2011069831A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/514,989 US9781446B2 (en) 2009-12-10 2010-11-25 Method for coding and method for decoding a block of an image and corresponding coding and decoding devices
EP10782289.2A EP2510694B1 (fr) 2009-12-10 2010-11-25 Procede de codage et de reconstruction d'un bloc image

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0958824 2009-12-10
FR0958824 2009-12-10

Publications (1)

Publication Number Publication Date
WO2011069831A1 true WO2011069831A1 (fr) 2011-06-16

Family

ID=42333331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/068181 WO2011069831A1 (fr) 2009-12-10 2010-11-25 Procédé et appareil permettant de coder et de décoder un bloc image

Country Status (3)

Country Link
US (1) US9781446B2 (fr)
EP (1) EP2510694B1 (fr)
WO (1) WO2011069831A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN110832859A (zh) * 2017-07-11 2020-02-21 华为技术有限公司 一种基于模板匹配的解码方法及装置

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* Cited by examiner, † Cited by third party
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KR102337217B1 (ko) * 2016-12-26 2021-12-09 삼성전자주식회사 전자 장치 및 그 동작 방법
CN111194553A (zh) * 2017-10-05 2020-05-22 交互数字Vc控股公司 用于视频编码和解码中的自适应照明补偿的方法和装置
US11936877B2 (en) * 2021-04-12 2024-03-19 Qualcomm Incorporated Template matching based affine prediction for video coding

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US20090180538A1 (en) * 2008-01-16 2009-07-16 The Regents Of The University Of California Template matching scheme using multiple predictors as candidates for intra-prediction
US20090225847A1 (en) * 2008-03-04 2009-09-10 Samsung Electronics Co., Ltd. Method and apparatus for encoding and decoding an image by using consecutive motion estimation
WO2009126260A1 (fr) * 2008-04-11 2009-10-15 Thomson Licensing Procédés et appareil permettant de prévoir une concordance de gabarit (tmp) dans le codage et décodage de données vidéo

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Publication number Priority date Publication date Assignee Title
CN110832859A (zh) * 2017-07-11 2020-02-21 华为技术有限公司 一种基于模板匹配的解码方法及装置
CN110832859B (zh) * 2017-07-11 2022-02-25 华为技术有限公司 一种基于模板匹配的解码方法及装置

Also Published As

Publication number Publication date
US9781446B2 (en) 2017-10-03
US20120320982A1 (en) 2012-12-20
EP2510694B1 (fr) 2017-07-26
EP2510694A1 (fr) 2012-10-17

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