MXPA03007999A - Metodo y aparato de codificacion de imagenes en movimiento y metodo y aparato de decodificacion. - Google Patents

Metodo y aparato de codificacion de imagenes en movimiento y metodo y aparato de decodificacion.

Info

Publication number
MXPA03007999A
MXPA03007999A MXPA03007999A MXPA03007999A MXPA03007999A MX PA03007999 A MXPA03007999 A MX PA03007999A MX PA03007999 A MXPA03007999 A MX PA03007999A MX PA03007999 A MXPA03007999 A MX PA03007999A MX PA03007999 A MXPA03007999 A MX PA03007999A
Authority
MX
Mexico
Prior art keywords
macro block
moving picture
frame
picture coding
reference frames
Prior art date
Application number
MXPA03007999A
Other languages
English (en)
Inventor
Kikuchi Yoshihiro
Original Assignee
Toshiba Kk
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
Priority claimed from JP2002341239A external-priority patent/JP2004007379A/ja
Priority claimed from JP2002341238A external-priority patent/JP2003284075A/ja
Application filed by Toshiba Kk filed Critical Toshiba Kk
Publication of MXPA03007999A publication Critical patent/MXPA03007999A/es

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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • 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
    • H04B1/662—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 using a time/frequency relationship, e.g. time compression or expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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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
    • H04N19/103—Selection of coding mode or of prediction mode
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    • 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
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    • H04N19/124—Quantisation
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    • 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
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    • 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
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    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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    • 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
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
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    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
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    • H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
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    • 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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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Una codificacion de imagenes en movimiento se lleva a cabo mediante la conmutacion adaptable entre el uso de varias senales de imagenes en movimiento decodificadas como cuadros de referencia para crear una imagen de macrobloque de prediccion a partir de uno de los varios cuadros de referencia para cada macrobloque, aislamiento de un macrobloque de referencia, entre varios cuadros de referencia para obtener un valor promedio como imagen de macrobloque de prediccion, y aislamiento de un macrobloque de referencia entre varios cuadros de referencia para crear una imagen de macrobloque de prediccion por extrapolacion lineal o por interpolacion lineal segun una distancia de cuadro a cuadro entre el cuadro de referencia y el cuadro codificador.
MXPA03007999A 2002-01-18 2003-01-20 Metodo y aparato de codificacion de imagenes en movimiento y metodo y aparato de decodificacion. MXPA03007999A (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2002010874 2002-01-18
JP2002108102 2002-04-10
JP2002341239A JP2004007379A (ja) 2002-04-10 2002-11-25 動画像符号化方法及び動画像復号化方法
JP2002341238A JP2003284075A (ja) 2002-01-18 2002-11-25 動画像符号化方法と装置及び復号化方法と装置
PCT/JP2003/000425 WO2003063502A1 (en) 2002-01-18 2003-01-20 Moving picture coding method and apparatus and decoding method and apparatus

Publications (1)

Publication Number Publication Date
MXPA03007999A true MXPA03007999A (es) 2004-04-02

Family

ID=27617715

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA03007999A MXPA03007999A (es) 2002-01-18 2003-01-20 Metodo y aparato de codificacion de imagenes en movimiento y metodo y aparato de decodificacion.

Country Status (11)

Country Link
US (15) US20040057523A1 (es)
EP (13) EP1830578A1 (es)
KR (12) KR100746321B1 (es)
CN (11) CN1917641A (es)
AU (2) AU2003203270B2 (es)
BR (1) BR0302719A (es)
CA (6) CA2574047C (es)
MX (1) MXPA03007999A (es)
NO (1) NO20034138L (es)
SG (2) SG162623A1 (es)
WO (1) WO2003063502A1 (es)

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