MX337291B - Método de codificación de imágenes y aparato de codificación de imágenes. - Google Patents

Método de codificación de imágenes y aparato de codificación de imágenes.

Info

Publication number
MX337291B
MX337291B MX2015003467A MX2015003467A MX337291B MX 337291 B MX337291 B MX 337291B MX 2015003467 A MX2015003467 A MX 2015003467A MX 2015003467 A MX2015003467 A MX 2015003467A MX 337291 B MX337291 B MX 337291B
Authority
MX
Mexico
Prior art keywords
image
image encoding
context
decoding
block
Prior art date
Application number
MX2015003467A
Other languages
English (en)
Inventor
Toshiyasu Sugio
Takahiro Nishi
Youji Shibahara
Hisao Sasai
Kyoko Tanikawa
Toru Matsunobu
Original Assignee
Panasonic Ip Corp America
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 Panasonic Ip Corp America filed Critical Panasonic Ip Corp America
Publication of MX337291B publication Critical patent/MX337291B/es

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90Methods 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
    • H04N19/91Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/17Methods 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
    • H04N19/176Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/13Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • H04N19/157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189Methods 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
    • H04N19/196Methods 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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189Methods 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
    • H04N19/196Methods 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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/197Methods 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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including determination of the initial value of an encoding parameter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46Embedding additional information in the video signal during the compression process
    • H04N19/463Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission

Landscapes

  • 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

El método de decodificación de imágenes de una modalidad de la presente invención comprende: un paso de control de contexto (S204) para determinar el contexto que se utiliza para un bloque que es procesado, entre una pluralidad de contextos; y un paso de decodificación aritmética (S210) para utilizar el contexto determinado para decodificar aritméticamente una secuencia de bits que corresponde al bloque que es procesado. En el paso de control de contexto (S204), si un tipo de señal para parámetros de control es un primer tipo, el contexto se determina mediante el uso de una condición que utiliza parámetros de control para tanto un bloque izquierdo como un bloque superior, los cuales son adyacentes al bloque que es procesado (S206), y si el tipo de señal para los parámetros de control es un segundo tipo, el contexto se determina mediante el uso de una condición que no utiliza el parámetro de control para el bloque superior (S207).
MX2015003467A 2011-06-23 2013-11-19 Método de codificación de imágenes y aparato de codificación de imágenes. MX337291B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201161500163P 2011-06-23 2011-06-23

Publications (1)

Publication Number Publication Date
MX337291B true MX337291B (es) 2016-02-24

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
MX2013013508A MX2013013508A (es) 2011-06-23 2012-06-22 Metodo de decodificacion de imagenes, metodo de codificacion de imagenes, aparato de decodificacion de imagenes, aparato de codificacion de imagenes y aparato de codificacion y decodificacion de imagenes.
MX2015003467A MX337291B (es) 2011-06-23 2013-11-19 Método de codificación de imágenes y aparato de codificación de imágenes.

Family Applications Before (1)

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MX2013013508A MX2013013508A (es) 2011-06-23 2012-06-22 Metodo de decodificacion de imagenes, metodo de codificacion de imagenes, aparato de decodificacion de imagenes, aparato de codificacion de imagenes y aparato de codificacion y decodificacion de imagenes.

Country Status (17)

Country Link
US (5) US8743969B2 (es)
EP (3) EP4404558A3 (es)
JP (6) JP5318292B2 (es)
KR (1) KR102008030B1 (es)
CN (2) CN103609113B (es)
AU (1) AU2012274778B2 (es)
BR (1) BR112013030469B1 (es)
CA (1) CA2837532C (es)
ES (1) ES2962519T3 (es)
MX (2) MX2013013508A (es)
MY (1) MY165357A (es)
PL (1) PL2725791T3 (es)
RU (1) RU2602672C2 (es)
SG (1) SG195163A1 (es)
TW (1) TW201322772A (es)
WO (1) WO2012176463A1 (es)
ZA (1) ZA201308890B (es)

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