BRPI0406847A - Método e aparelho para prevenir a propagação de erros em uma sequência de vìdeo - Google Patents

Método e aparelho para prevenir a propagação de erros em uma sequência de vìdeo

Info

Publication number
BRPI0406847A
BRPI0406847A BR0406847-5A BRPI0406847A BRPI0406847A BR PI0406847 A BRPI0406847 A BR PI0406847A BR PI0406847 A BRPI0406847 A BR PI0406847A BR PI0406847 A BRPI0406847 A BR PI0406847A
Authority
BR
Brazil
Prior art keywords
video sequence
video
region
constructing
preventing
Prior art date
Application number
BR0406847-5A
Other languages
English (en)
Inventor
Purvin Bibhas Pandit
Jill Macdonald Boyce
Original Assignee
Thomson Licensing Sa
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 Sa filed Critical Thomson Licensing Sa
Publication of BRPI0406847A publication Critical patent/BRPI0406847A/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
    • 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
    • H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience
    • 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
    • H04N19/157—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
    • 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
    • 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
    • H04N19/503—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

Landscapes

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

Abstract

"MéTODO E APARELHO PARA PREVENIR A PROPAGAçãO DE ERROS EM UMA SEQuêNCIA DE VìDEO". Um método de construção de uma seq³ência de imagens de vídeo é descrito. Uma região de uma imagem de vídeo que deve ser utilizada como um elemento de previsão para a construção de um bloco correspondente a uma segunda imagem em uma seq³ência de vídeo é ignorada quando uma técnica de correção de erro é utilizada para construir a região de previsão (405). A invenção aplica a informação correspondente a uma região de uma imagem alternativa (410) na seq³ência de vídeo como substituição da região de previsão. Essa informação de substituição é então utilizada como a base para construir de forma previsível o bloco de acordo com uma operação de decodificação de vídeo (415).
BR0406847-5A 2003-01-23 2004-01-23 Método e aparelho para prevenir a propagação de erros em uma sequência de vìdeo BRPI0406847A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44211003P 2003-01-23 2003-01-23
PCT/US2004/001781 WO2004066096A2 (en) 2003-01-23 2004-01-23 Method and apparatus for preventing error propagation in a video sequence

Publications (1)

Publication Number Publication Date
BRPI0406847A true BRPI0406847A (pt) 2005-12-27

Family

ID=32772022

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0406847-5A BRPI0406847A (pt) 2003-01-23 2004-01-23 Método e aparelho para prevenir a propagação de erros em uma sequência de vìdeo

Country Status (8)

Country Link
US (1) US20060109914A1 (pt)
EP (1) EP1586199A4 (pt)
JP (1) JP2006518561A (pt)
KR (1) KR101075969B1 (pt)
CN (1) CN1774924B (pt)
BR (1) BRPI0406847A (pt)
MX (1) MXPA05007854A (pt)
WO (1) WO2004066096A2 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7852961B2 (en) * 2004-05-20 2010-12-14 Samsung Electronics Co., Ltd. Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof
US7702994B2 (en) 2004-11-16 2010-04-20 Nxp B.V. Method of determining a corruption indication of a sequence of encoded data frames
US7675872B2 (en) 2004-11-30 2010-03-09 Broadcom Corporation System, method, and apparatus for displaying pictures
KR100677548B1 (ko) * 2004-12-31 2007-02-02 삼성전자주식회사 복호된 영상의 오류 재은닉 방법 및 그 장치
EP2071851B1 (en) * 2007-12-11 2011-09-28 Alcatel Lucent Process for delivering a video stream over a wireless channel
US20110249127A1 (en) * 2010-04-07 2011-10-13 Cisco Technology, Inc. Estimating Video Quality Corruption in Lossy Networks

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146325A (en) * 1991-04-29 1992-09-08 Rca Thomson Licensing Corporation Video signal decompression apparatus for independently compressed even and odd field data
US5212549A (en) * 1991-04-29 1993-05-18 Rca Thomson Licensing Corporation Error concealment apparatus for a compressed video signal processing system
US5568200A (en) * 1995-06-07 1996-10-22 Hitachi America, Ltd. Method and apparatus for improved video display of progressively refreshed coded video
CN1122421C (zh) * 1995-08-04 2003-09-24 株式会社大宇电子 用于图象信号编码系统的运动矢量估算方法和设备
JP3297293B2 (ja) * 1996-03-07 2002-07-02 三菱電機株式会社 動画像復号方法および動画像復号装置
JP3604290B2 (ja) * 1998-09-25 2004-12-22 沖電気工業株式会社 動画像復号方法及び装置
JP3606306B2 (ja) * 1998-10-08 2005-01-05 沖電気工業株式会社 画像符号化装置、画像復号化装置及び画像伝送システム
JP4569791B2 (ja) * 2000-05-25 2010-10-27 ソニー株式会社 映像処理装置および方法、並びに記録媒体
AU2002250278A1 (en) * 2001-03-07 2002-09-19 Pts Corporation Local constraints for motion estimation

Also Published As

Publication number Publication date
WO2004066096A2 (en) 2004-08-05
MXPA05007854A (es) 2005-10-18
WO2004066096A3 (en) 2004-09-23
US20060109914A1 (en) 2006-05-25
CN1774924B (zh) 2010-09-29
KR20050090463A (ko) 2005-09-13
KR101075969B1 (ko) 2011-10-21
CN1774924A (zh) 2006-05-17
EP1586199A4 (en) 2009-09-23
EP1586199A2 (en) 2005-10-19
JP2006518561A (ja) 2006-08-10

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