BR112013023405A2 - método para a reconstrução e a codificação de um bloco de imagem - Google Patents

método para a reconstrução e a codificação de um bloco de imagem

Info

Publication number
BR112013023405A2
BR112013023405A2 BR112013023405A BR112013023405A BR112013023405A2 BR 112013023405 A2 BR112013023405 A2 BR 112013023405A2 BR 112013023405 A BR112013023405 A BR 112013023405A BR 112013023405 A BR112013023405 A BR 112013023405A BR 112013023405 A2 BR112013023405 A2 BR 112013023405A2
Authority
BR
Brazil
Prior art keywords
parameter
reconstructing
neighboring area
current block
distortion
Prior art date
Application number
BR112013023405A
Other languages
English (en)
Inventor
Aurélie Martin
Dominique Thoreau
Edouard Francois
Fabien Racape
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
Publication of BR112013023405A2 publication Critical patent/BR112013023405A2/pt

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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
    • H04N19/10—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
    • 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
    • H04N19/134—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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/17—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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/10—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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using 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
    • H04N19/50—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
    • H04N19/60—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
    • H04N19/70—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

resumo “método para a reconstrução e a codificação de um bloco de imagem” é descrito um método para a reconstrução de um bloco corrente predito a partir de pelo menos um bloco de referência. o método compreende as etapas: - de decodificação (20) de pelo menos um parâmetro de predição ponderada, denominado um parâmetro explí-cito (wp1) a partir de dados codificados, - de cálculo (22) de pelo menos um parâmetro de predição ponderada denominado um parâmetro implícito (wp2) a partir de uma primeira área vizinha causal (lc1) do bloco corrente (be) e de uma primeira área vizinha correspondente (lr1) do bloco de referência (br), - de cálculo (24) de uma primeira distorção (d1) resultante da predição de uma segunda área vizinha causal (lc2) do bloco corrente com o parâmetro explícito e de uma segunda distorção (d2) resultante da predição de uma segunda área vi-zinha causal (lc2) com o parâmetro implícito, - de comparação (26) da primeira distorção com a segunda, - de seleção (28) de um parâmetro entre o parâmetro explícito e o parâmetro implícito dependendo do resultado da comparação, e – de reconstrução (30) do bloco corrente usando o parâmetro selecionado.
BR112013023405A 2011-03-14 2012-03-08 método para a reconstrução e a codificação de um bloco de imagem BR112013023405A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1152044 2011-03-14
PCT/EP2012/053978 WO2012123321A1 (en) 2011-03-14 2012-03-08 Method for reconstructing and coding an image block

Publications (1)

Publication Number Publication Date
BR112013023405A2 true BR112013023405A2 (pt) 2016-12-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013023405A BR112013023405A2 (pt) 2011-03-14 2012-03-08 método para a reconstrução e a codificação de um bloco de imagem

Country Status (7)

Country Link
US (1) US20140056348A1 (pt)
EP (1) EP2687011A1 (pt)
JP (1) JP5938424B2 (pt)
KR (1) KR20140026397A (pt)
CN (1) CN103430543A (pt)
BR (1) BR112013023405A2 (pt)
WO (1) WO2012123321A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2948845A1 (fr) 2009-07-30 2011-02-04 Thomson Licensing Procede de decodage d'un flux representatif d'une sequence d'images et procede de codage d'une sequence d'images
US9883180B2 (en) 2012-10-03 2018-01-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Bounded rate near-lossless and lossless image compression
CN104363449B (zh) * 2014-10-31 2017-10-10 华为技术有限公司 图像预测方法及相关装置
WO2016085229A1 (ko) * 2014-11-27 2016-06-02 주식회사 케이티 비디오 신호 처리 방법 및 장치

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7515637B2 (en) * 2004-05-21 2009-04-07 Broadcom Advanced Compression Group, Llc Video decoding for motion compensation with weighted prediction
JP5062833B2 (ja) * 2004-09-16 2012-10-31 トムソン ライセンシング 局在的な輝度変動を利用した重み付き予測ビデオ・コーデックのための方法および装置
JP5224459B2 (ja) * 2006-02-02 2013-07-03 トムソン ライセンシング 動き補償予測のための適応重み選択を行う方法および装置
US20100232506A1 (en) 2006-02-17 2010-09-16 Peng Yin Method for handling local brightness variations in video
WO2008004940A1 (en) * 2006-07-07 2008-01-10 Telefonaktiebolaget Lm Ericsson (Publ) Video data management
BRPI0906413A2 (pt) * 2008-01-10 2015-07-14 Thomson Licensing Métodos e equipamento para compensação de iluminação de vídeo intra predito
JPWO2010035731A1 (ja) * 2008-09-24 2012-02-23 ソニー株式会社 画像処理装置および方法
TWI498003B (zh) 2009-02-02 2015-08-21 Thomson Licensing 代表一序列圖像的碼式資料連流之解碼方法和一序列圖像之寫碼方法及碼式圖像資料結構
US8711930B2 (en) * 2009-07-09 2014-04-29 Qualcomm Incorporated Non-zero rounding and prediction mode selection techniques in video encoding

Also Published As

Publication number Publication date
US20140056348A1 (en) 2014-02-27
WO2012123321A1 (en) 2012-09-20
KR20140026397A (ko) 2014-03-05
JP2014514808A (ja) 2014-06-19
JP5938424B2 (ja) 2016-06-22
EP2687011A1 (en) 2014-01-22
CN103430543A (zh) 2013-12-04

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: H04N 19/105 (2014.01), H04N 19/137 (2014.01), H04N

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]