BR0212000A - Sistema e método para ocultação de erro de vìdeo - Google Patents

Sistema e método para ocultação de erro de vìdeo

Info

Publication number
BR0212000A
BR0212000A BR0212000-3A BR0212000A BR0212000A BR 0212000 A BR0212000 A BR 0212000A BR 0212000 A BR0212000 A BR 0212000A BR 0212000 A BR0212000 A BR 0212000A
Authority
BR
Brazil
Prior art keywords
video
data packets
video data
errors
hiding
Prior art date
Application number
BR0212000-3A
Other languages
English (en)
Inventor
Michael Horowitz
Rick Flott
Original Assignee
Polycom Inc
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 Polycom Inc filed Critical Polycom Inc
Publication of BR0212000A publication Critical patent/BR0212000A/pt

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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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H—ELECTRICITY
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    • 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
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • H—ELECTRICITY
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    • 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
    • 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
    • H04N19/134—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
    • H04N19/164—Feedback from the receiver or from the transmission channel
    • H04N19/166—Feedback from the receiver or from the transmission channel concerning the amount of transmission errors, e.g. bit error rate [BER]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
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    • 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
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    • H04N19/46—Embedding additional information in the video signal during the compression process
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    • 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
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    • 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
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    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
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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
    • H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience
    • H04N19/66—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience involving data partitioning, i.e. separation of data into packets or partitions according to importance
    • 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
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    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/93—Run-length coding

Abstract

"SISTEMA E MéTODO PARA OCULTAçãO DE ERRO DE VìDEO". A presente invenção fornece, em uma modalidade, um sistema e método para a ocultação dos erros de vídeo. O sistema codifica, reordena e empacota a informação de vídeo em pacotes de dados de vídeo para a transmissão através de uma rede de comunicação de forma que o sistema oculte os erros causados pela perda dos pacotes de dados de vídeo quando o sistema recebe, desempacota, ordena (915) e decodifica os pacotes de dados. Em uma modalidade, o sistema e método codificam e empacotam a informação de vídeo, de forma que os macroblocos adjacentes não sejam colocados nos mesmos pacotes de dados de video (925). Adicionalmente, o sistema e método podem fornecer informação anexa aos pacotes de dados de vídeo para facilitar o processo de decodificação. Uma vantagem de tal esquema é que os erros decorrentes do pacote de dados de vídeo perdido são espacialmente distribuídos através de um quadro de vídeo. Dessa forma, se regiões dos dados que cercam um macrobloco perdido forem decodificadas com sucesso, o decodificador pode prever os vetores de movimento e o conteúdo espacial com um maior grau de precisão, o que leva a uma maior qualidade de vídeo.
BR0212000-3A 2001-08-23 2002-08-23 Sistema e método para ocultação de erro de vìdeo BR0212000A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31441301P 2001-08-23 2001-08-23
PCT/US2002/026577 WO2003019939A1 (en) 2001-08-23 2002-08-23 System and method for video error concealment

Publications (1)

Publication Number Publication Date
BR0212000A true BR0212000A (pt) 2004-09-28

Family

ID=23219857

Family Applications (2)

Application Number Title Priority Date Filing Date
BR0212000-3A BR0212000A (pt) 2001-08-23 2002-08-23 Sistema e método para ocultação de erro de vìdeo
BRPI0212000-3A BRPI0212000B1 (pt) 2001-08-23 2002-08-23 "system and method for processing video data"

Family Applications After (1)

Application Number Title Priority Date Filing Date
BRPI0212000-3A BRPI0212000B1 (pt) 2001-08-23 2002-08-23 "system and method for processing video data"

Country Status (15)

Country Link
US (2) US7239662B2 (pt)
EP (1) EP1421787A4 (pt)
JP (2) JP4881543B2 (pt)
KR (1) KR100691307B1 (pt)
CN (1) CN100581238C (pt)
AU (1) AU2002326713B2 (pt)
BR (2) BR0212000A (pt)
CA (1) CA2457882C (pt)
IL (2) IL160476A0 (pt)
MX (1) MXPA04001656A (pt)
NO (2) NO339116B1 (pt)
NZ (1) NZ531863A (pt)
RU (1) RU2291586C2 (pt)
WO (1) WO2003019939A1 (pt)
ZA (1) ZA200401377B (pt)

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EP1421787A4 (en) 2008-10-08
JP2005501488A (ja) 2005-01-13
NO343205B1 (no) 2018-12-03
MXPA04001656A (es) 2004-11-22
KR100691307B1 (ko) 2007-03-12
JP2012070391A (ja) 2012-04-05
NO20161599A1 (no) 2004-04-23
KR20040027982A (ko) 2004-04-01
CA2457882A1 (en) 2003-03-06
RU2004105598A (ru) 2005-07-20
RU2291586C2 (ru) 2007-01-10
ZA200401377B (en) 2005-07-27
CN1679330A (zh) 2005-10-05
US20070230583A1 (en) 2007-10-04
NO339116B1 (no) 2016-11-14
IL160476A0 (en) 2004-07-25
EP1421787A1 (en) 2004-05-26
JP4881543B2 (ja) 2012-02-22
WO2003019939A1 (en) 2003-03-06
US7239662B2 (en) 2007-07-03
NZ531863A (en) 2005-10-28
CA2457882C (en) 2009-06-02
IL160476A (en) 2009-02-11
AU2002326713B2 (en) 2006-12-14
US20030039312A1 (en) 2003-02-27
NO20040754L (no) 2004-04-23
BRPI0212000B1 (pt) 2017-12-12

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