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BRPI0411708A - método e aparelho para estimativa de prognóstico ponderado utilizando um diferencial de quadro deslocado - Google Patents

método e aparelho para estimativa de prognóstico ponderado utilizando um diferencial de quadro deslocado

Info

Publication number
BRPI0411708A
BRPI0411708A BRPI0411708-5A BRPI0411708A BRPI0411708A BR PI0411708 A BRPI0411708 A BR PI0411708A BR PI0411708 A BRPI0411708 A BR PI0411708A BR PI0411708 A BRPI0411708 A BR PI0411708A
Authority
BR
Brazil
Prior art keywords
reference image
weighted
compensated
motion
image
Prior art date
Application number
BRPI0411708-5A
Other languages
English (en)
Inventor
Peng Yin
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 BRPI0411708A publication Critical patent/BRPI0411708A/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
    • H04N19/50—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
    • H04N19/50—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
    • H04N19/10—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
    • H04N19/169—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
    • H04N19/189—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
    • H04N19/192—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 the adaptation method, adaptation tool or adaptation type being iterative or recursive
    • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)

Abstract

"MéTODO E APARELHO PARA ESTIMATIVA DE PROGNóSTICO PONDERADO UTILIZANDO UM DIFERENCIAL DE QUADRO DESLOCADO". Trata-se de um codificador de vídeo (200, 300) e dos métodos correspondentes (600, 700) que são proporcionados para estimativa de prognóstico ponderado utilizando uma diferença ou diferencial de quadro deslocado, o codificador incorporando um método (700) para receber (712) um bloco de imagem substancialmente não compactado, designar (714) um fator de ponderação para o bloco de imagem correspondendo a uma imagem de referência particular possuindo um índice correspondente, calcular (716) vetores de movimento correspondendo à diferença entre o bloco de imagem e a imagem de referência particular, compensar o movimento (718) da imagem de referência particular em correspondência com os vetores de movimento, multiplicar (720) a imagem de referência com movimento compensado pelo fator de ponderação designado para formar uma imagem de referência com movimento compensado ponderada, subtrair (722)a imagem de referência com movimento compensado ponderada do bloco de imagem substancialmente não compactado e codificar (724) um sinal indicativo da diferença entre o bloco de imagem substancialmente não compactado e a imagem de referência com movimento compensado ponderada junto com o índice correspondente da imagem de referência particular.
BRPI0411708-5A 2003-06-25 2004-06-23 método e aparelho para estimativa de prognóstico ponderado utilizando um diferencial de quadro deslocado BRPI0411708A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48230103P 2003-06-25 2003-06-25
PCT/US2004/020028 WO2005004492A2 (en) 2003-06-25 2004-06-23 Method and apparatus for weighted prediction estimation using a displaced frame differential

Publications (1)

Publication Number Publication Date
BRPI0411708A true BRPI0411708A (pt) 2006-08-08

Family

ID=33563845

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0411708-5A BRPI0411708A (pt) 2003-06-25 2004-06-23 método e aparelho para estimativa de prognóstico ponderado utilizando um diferencial de quadro deslocado

Country Status (8)

Country Link
US (1) US7809059B2 (pt)
EP (1) EP1636998A2 (pt)
JP (1) JP2007525072A (pt)
KR (1) KR20060055472A (pt)
CN (1) CN1810041A (pt)
BR (1) BRPI0411708A (pt)
MX (1) MXPA05013727A (pt)
WO (1) WO2005004492A2 (pt)

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Also Published As

Publication number Publication date
US7809059B2 (en) 2010-10-05
WO2005004492A3 (en) 2005-04-14
JP2007525072A (ja) 2007-08-30
US20060198440A1 (en) 2006-09-07
KR20060055472A (ko) 2006-05-23
CN1810041A (zh) 2006-07-26
EP1636998A2 (en) 2006-03-22
WO2005004492A2 (en) 2005-01-13
MXPA05013727A (es) 2006-07-06

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired
B15K Others concerning applications: alteration of classification

Ipc: H04N 19/577 (2014.01), H04N 19/105 (2014.01), H04N