BR0318528A - processo de derivação de modo direto para encobrimento de erros - Google Patents

processo de derivação de modo direto para encobrimento de erros

Info

Publication number
BR0318528A
BR0318528A BRPI0318528-1A BR0318528A BR0318528A BR 0318528 A BR0318528 A BR 0318528A BR 0318528 A BR0318528 A BR 0318528A BR 0318528 A BR0318528 A BR 0318528A
Authority
BR
Brazil
Prior art keywords
derivation process
macroblock
image
mode derivation
direct mode
Prior art date
Application number
BRPI0318528-1A
Other languages
English (en)
Inventor
Cristina Gomila
Jill Macdonald Boyce
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 BR0318528A publication Critical patent/BR0318528A/pt

Links

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
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • 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
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H04N19/895—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • 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
    • H04N19/503—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
    • H04N19/513—Processing of motion vectors
    • 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

"PROCESSO DE DERIVAçãO DE MODO DIRETO PARA ENCOBRIMENTO DE ERROS". O encobrimento temporal de macro blocos perdidos/ ausentes conta com o processo de derivação de modo de direção tipicamente padronizado nos decodificadores de video. Quando detectando um erro na forma de uma imagem (fig. 1), um macro bloco co-localizado é encontrado na imagem transmitida anteriormente. O vetor de moção para este macro bloco co-local é determinado (fig. 2). O macro bloco identificado é previsto pelos dados de compensação de moção a partir de uma segunda imagem transmitida anteriormente de acordo com o vetor de moção determinado para o macro bloco co-localizado (fig. 3).
BRPI0318528-1A 2003-10-09 2003-10-09 processo de derivação de modo direto para encobrimento de erros BR0318528A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/031825 WO2005046072A1 (en) 2003-10-09 2003-10-09 Direct mode derivation process for error concealment

Publications (1)

Publication Number Publication Date
BR0318528A true BR0318528A (pt) 2006-09-12

Family

ID=34572270

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0318528-1A BR0318528A (pt) 2003-10-09 2003-10-09 processo de derivação de modo direto para encobrimento de erros

Country Status (8)

Country Link
US (1) US20070014359A1 (pt)
EP (1) EP1671427A4 (pt)
JP (1) JP2007521696A (pt)
KR (1) KR100941123B1 (pt)
AU (1) AU2003282462A1 (pt)
BR (1) BR0318528A (pt)
MX (1) MXPA06003925A (pt)
WO (1) WO2005046072A1 (pt)

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Also Published As

Publication number Publication date
MXPA06003925A (es) 2006-07-05
EP1671427A4 (en) 2010-04-07
EP1671427A1 (en) 2006-06-21
JP2007521696A (ja) 2007-08-02
AU2003282462A1 (en) 2005-05-26
WO2005046072A1 (en) 2005-05-19
KR100941123B1 (ko) 2010-02-10
KR20060090990A (ko) 2006-08-17
US20070014359A1 (en) 2007-01-18

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 7A E 8A ANUIDADE(S).

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

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2144 DE 07/02/2012.