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ES2525557T3 - Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes - Google Patents

Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes Download PDF

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Publication number
ES2525557T3
ES2525557T3 ES10179568.0T ES10179568T ES2525557T3 ES 2525557 T3 ES2525557 T3 ES 2525557T3 ES 10179568 T ES10179568 T ES 10179568T ES 2525557 T3 ES2525557 T3 ES 2525557T3
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Prior art keywords
prediction mode
prediction
horizontal
degrees
approximately
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Expired - Lifetime
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ES10179568.0T
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English (en)
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Shijun Sun
Louis Joseph Kerofsky
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Sharp Corp
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Sharp Corp
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Priority claimed from US10/404,298 external-priority patent/US7386048B2/en
Priority claimed from US10/404,211 external-priority patent/US7289672B2/en
Priority claimed from US10/404,293 external-priority patent/US7236524B2/en
Application filed by Sharp Corp filed Critical Sharp Corp
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Publication of ES2525557T3 publication Critical patent/ES2525557T3/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
    • 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
    • H04N19/196—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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/198—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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters including smoothing of a sequence of encoding parameters, e.g. by averaging, by choice of the maximum, minimum or median value
    • 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
    • H04N19/102—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
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
    • 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
    • H04N19/176—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
    • 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
    • H04N19/196—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 being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H04N19/197—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 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
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • 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
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets

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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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Abstract

Un sistema de codificación de imagen para codificar una imagen digital que comprende: medios para codificar cada uno de los bloques en los que está dividida una imagen, medios de intra-predicción para predecir un valor de píxel de un bloque objetivo a ser codificado mediante el uso de al menos un valor de píxel de un bloque adyacente al bloque objetivo, y medios de estimación del modo de predicción para estimar un modo de predicción para el bloque objetivo; en el que los medios de intra-predicción incluyen un modo de predicción vertical utilizando un valor de predicción que es un valor de píxel de un primer bloque localizado junto y por encima del bloque objetivo; un modo de predicción horizontal utilizando un valor de predicción que es un valor de píxel de un segundo bloque situado junto a la izquierda del bloque objetivo; un modo de predicción DC utilizando un valor de predicción que es un promedio de los valores de píxel de los bloques primero y segundo; un modo de predicción diagonal abajo/izquierda utilizando la dirección especificada que es diagonalmente hacia abajo a la izquierda a aproximadamente un ángulo de 45 grados desde la horizontal; un modo de predicción diagonal abajo/derecha utilizando la dirección especificada que es diagonalmente hacia abajo a la derecha a aproximadamente un ángulo de 45 grados desde la horizontal; un modo de predicción vertical derecho utilizando la dirección especificada que es diagonalmente hacia abajo a la derecha a aproximadamente un ángulo de 67,5 grados desde la horizontal; una predicción horizontal hacia abajo utilizando la dirección especificada que es diagonalmente hacia abajo a la derecha a aproximadamente un ángulo de 22,5 grados desde la horizontal; un modo de predicción vertical utilizando la dirección especificada que es diagonalmente hacia abajo a la izquierda a aproximadamente un ángulo de 67,5 grados desde la horizontal; y un modo de predicción horizontal arriba utilizando la dirección especificada que está diagonalmente hacia arriba a la derecha a aproximadamente un ángulo de 22,5 grados desde la horizontal; los modos de predicción son numerados con números crecientes en serie, en el orden del modo de predicción vertical, el modo de predicción horizontal, el modo de predicción DC, el modo de predicción diagonal abajo/izquierda, el modo de predicción diagonal abajo/derecha; el modo de predicción vertical derecho; el modo de predicción horizontal hacia abajo; el modo de predicción vertical izquierdo y el modo de predicción horizontal arriba y los medios de estimación del modo de predicción determinan que un modo de predicción tiene el menor número de modo entre el modo de predicción del primer bloque y el modo de predicción del segundo bloque como el modo de predicción para el bloque objetivo; y los medios de intra-predicción codifican la primera información y la segunda información; la primera información muestra si un modo de predicción real es igual o no al modo de predicción que se ha estimado en los medios de estimación; y la segunda información está codificada en un caso donde el modo de predicción real es diferente del modo de predicción que se ha estimado en los medios de estimación para mostrar el modo de predicción real; en el que la segunda información es una referencia al orden de modo de un conjunto de modos de predicción reordenados realizada eliminando el modo de predicción estimado por los medios de estimación del grupo ordenado.

Description

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Claims (1)

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ES10179568.0T 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes Expired - Lifetime ES2525557T3 (es)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US31927202P 2002-05-28 2002-05-28
US319272P 2002-05-28
US31939002P 2002-07-11 2002-07-11
US319390P 2002-07-11
US404211 2003-03-31
US10/404,298 US7386048B2 (en) 2002-05-28 2003-03-31 Methods and systems for image intra-prediction mode organization
US10/404,211 US7289672B2 (en) 2002-05-28 2003-03-31 Methods and systems for image intra-prediction mode estimation
US404298 2003-03-31
US10/404,293 US7236524B2 (en) 2002-05-28 2003-03-31 Methods and systems for image intra-prediction mode communication
US404293 2003-03-31

Publications (1)

Publication Number Publication Date
ES2525557T3 true ES2525557T3 (es) 2014-12-26

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Application Number Title Priority Date Filing Date
ES10179568.0T Expired - Lifetime ES2525557T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES08007745.6T Expired - Lifetime ES2530204T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES16194007T Expired - Lifetime ES2747368T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES10179562.3T Expired - Lifetime ES2532326T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES03730648T Expired - Lifetime ES2283776T3 (es) 2002-05-28 2003-05-27 Metodos y sistemas para la estimacion, comunicacion y organizacion de modos de intra-prediccion de imagenes.
ES14190896T Expired - Lifetime ES2788534T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES10179572.2T Expired - Lifetime ES2467696T3 (es) 2002-05-28 2003-05-27 Métodos y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes

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ES08007745.6T Expired - Lifetime ES2530204T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES16194007T Expired - Lifetime ES2747368T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES10179562.3T Expired - Lifetime ES2532326T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES03730648T Expired - Lifetime ES2283776T3 (es) 2002-05-28 2003-05-27 Metodos y sistemas para la estimacion, comunicacion y organizacion de modos de intra-prediccion de imagenes.
ES14190896T Expired - Lifetime ES2788534T3 (es) 2002-05-28 2003-05-27 Método y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes
ES10179572.2T Expired - Lifetime ES2467696T3 (es) 2002-05-28 2003-05-27 Métodos y sistemas para la estimación, comunicación y organización de modos de intra-predicción de imágenes

Country Status (10)

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EP (11) EP2860977A1 (es)
JP (5) JP3734492B2 (es)
KR (3) KR100685264B1 (es)
CN (5) CN101087423B (es)
AU (1) AU2003241177A1 (es)
DE (1) DE60313454T2 (es)
ES (7) ES2525557T3 (es)
HK (2) HK1209544A1 (es)
TW (1) TWI241532B (es)
WO (1) WO2003101117A1 (es)

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