MXPA03010729A - Metodo de codificacion y descodificacion de imagenes o cuadros en movimiento. - Google Patents

Metodo de codificacion y descodificacion de imagenes o cuadros en movimiento.

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Publication number
MXPA03010729A
MXPA03010729A MXPA03010729A MXPA03010729A MXPA03010729A MX PA03010729 A MXPA03010729 A MX PA03010729A MX PA03010729 A MXPA03010729 A MX PA03010729A MX PA03010729 A MXPA03010729 A MX PA03010729A MX PA03010729 A MXPA03010729 A MX PA03010729A
Authority
MX
Mexico
Prior art keywords
picture
coding
moving image
unit
predictive
Prior art date
Application number
MXPA03010729A
Other languages
English (en)
Inventor
Kadono Shinya
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of MXPA03010729A publication Critical patent/MXPA03010729A/es

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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
    • 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
    • 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
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    • 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
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    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
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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
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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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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

De acuerdo a la presente invencion, un aparato (10) de codificacion de imagenes o cuadros en movimiento para realizar la codificacion predictiva entre imagenes para imagenes que constituyen una imagen en movimiento se proporciona con una unidad de codificacion (103) para realizar la codificacion predictiva de error para los datos de imagen; una unidad de descodificacion (105) para realizar la descodificacion de error, predictiva para una salida de la unidad de codificacion (103); una memoria (117) de imagen de referencia para retener los datos de salida de la unidad de descodificacion (105); y una unidad (108) de deteccion de vector de movimiento para detectar vectores de movimiento adelantado y retrasado en base a los datos de imagen descodificados, almacenados en la memoria (117). Cuando se codifica una imagen B, una imagen que esta mas cercana en direccion del tiempo a la imagen del objetivo se utiliza como imagen candidata para referencia adelantada y una imagen I o P que esta mas cercana en direccion del tiempo se utiliza como candidata para referencia retrasada. El aparato de codificacion de imagenes (10) construido de esa manera puede mejorar la eficacia de codificacion de la imagen B sometida a la codificacion predictiva bidireccional.
MXPA03010729A 2001-11-06 2002-11-06 Metodo de codificacion y descodificacion de imagenes o cuadros en movimiento. MXPA03010729A (es)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2001340698 2001-11-06
JP2001373311 2001-12-06
JP2001388466 2001-12-20
JP2002012117 2002-01-21
JP2002118598 2002-04-19
PCT/JP2002/011554 WO2003041385A2 (en) 2001-11-06 2002-11-06 Moving image coding method, and moving image decoding method

Publications (1)

Publication Number Publication Date
MXPA03010729A true MXPA03010729A (es) 2004-03-02

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Family Applications (2)

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MXPA03006080A MXPA03006080A (es) 2001-11-06 2002-11-06 Metodo de codificacion y descodificacion de imagenes en movimiento.
MXPA03010729A MXPA03010729A (es) 2001-11-06 2002-11-06 Metodo de codificacion y descodificacion de imagenes o cuadros en movimiento.

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Application Number Title Priority Date Filing Date
MXPA03006080A MXPA03006080A (es) 2001-11-06 2002-11-06 Metodo de codificacion y descodificacion de imagenes en movimiento.

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US (17) US7310373B2 (es)
EP (15) EP3122047B1 (es)
KR (6) KR100926850B1 (es)
CN (2) CN100505878C (es)
AU (1) AU2002343215C1 (es)
BR (3) BR0206305A (es)
CA (2) CA2456377C (es)
DK (3) DK2271111T3 (es)
ES (10) ES2665693T3 (es)
MX (2) MXPA03006080A (es)
PT (3) PT1445960T (es)
TR (4) TR201802383T4 (es)
WO (2) WO2003041415A1 (es)

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FG Grant or registration
GB Transfer or rights
HC Change of company name or juridical status