MX352879B - Codificación y decodificación de coeficientes significativos en función de un parámetro de los coeficientes significativos. - Google Patents

Codificación y decodificación de coeficientes significativos en función de un parámetro de los coeficientes significativos.

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Publication number
MX352879B
MX352879B MX2015014134A MX2015014134A MX352879B MX 352879 B MX352879 B MX 352879B MX 2015014134 A MX2015014134 A MX 2015014134A MX 2015014134 A MX2015014134 A MX 2015014134A MX 352879 B MX352879 B MX 352879B
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data
significant
encoding
value
portions
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MX2015014134A
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English (en)
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MX2015014134A (es
Inventor
James Sharman Karl
Berry David
Alexander Gamei James
Ian Saunders Saunders Nicholas
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Sony Corp
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Publication of MX2015014134A publication Critical patent/MX2015014134A/es
Publication of MX352879B publication Critical patent/MX352879B/es

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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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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    • H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind

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  • Engineering & Computer Science (AREA)
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  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)

Abstract

Un método de codificación de datos para la codificación de una matriz de valores de datos como conjuntos de datos y códigos de escape para los valores no codificados por los conjuntos de datos, un código de escape que comprende una porción unaria codificada y una parte no unaria codificada comprende las etapas de: Establecer un parámetro de codificación de la definición de un número mínimo de bits de una parte codificada no unaria, el parámetro de codificación está entre 0 y un límite superior predeterminado; añadir un valor de desplazamiento de 1 o más para el parámetro de codificación a fin de definir un tamaño mínimo de la porción de datos menos significativos; generar uno o más conjuntos de datos indicativos de las posiciones, en relación con la matriz de valores de datos, de valores de datos de rangos de magnitud predeterminada, a fin de codificar el valor de al menos un bit menos significativo de cada valor de datos; generar, a partir de al menos la parte de cada valor de datos no codificados por el uno o más conjuntos de datos, las respectivas porciones de datos más significativos complementarios y porciones de datos menos significativos, de tal manera que la porción de datos más significativo de un valor representa cero o más bits más significativos de esa porción, y la respectiva porción de datos menos significativo depende de un número de bits menos significativos de esa parte, el número de bits menos significativos que es mayor que o igual al tamaño mínimo de la porción de datos menos significativo; codificar los conjuntos de datos a un flujo de datos de salida; codificar las porciones de datos más significativos con la corriente de datos de salida; y la codificación de las porciones menos significativos con la corriente de datos de salida.
MX2015014134A 2013-04-08 2014-04-04 Codificación y decodificación de coeficientes significativos en función de un parámetro de los coeficientes significativos. MX352879B (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1306335.9A GB2513111A (en) 2013-04-08 2013-04-08 Data encoding and decoding
GB1307121.2A GB2513186A (en) 2013-04-08 2013-04-19 Data encoding and decoding
GB1312330.2A GB2512955A (en) 2013-04-08 2013-07-09 Data encoding and decoding
GB1320775.8A GB2512966A (en) 2013-04-08 2013-11-25 Data encoding and decoding
PCT/GB2014/051065 WO2014167298A1 (en) 2013-04-08 2014-04-04 Encoding and decoding of significant coefficients in dependence upon a parameter of the significant coefficients

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MX2015014134A MX2015014134A (es) 2016-04-07
MX352879B true MX352879B (es) 2017-12-13

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US (4) US10136136B2 (es)
EP (2) EP2984828B1 (es)
JP (3) JP6636909B2 (es)
CN (3) CN105103549B (es)
AU (1) AU2014252876B2 (es)
BR (1) BR112015025478B1 (es)
CA (2) CA3096273A1 (es)
GB (5) GB2513111A (es)
MX (1) MX352879B (es)
RU (2) RU2751570C2 (es)
TW (2) TWI685245B (es)
WO (2) WO2014167297A1 (es)

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