MX2023004268A - Metodo y aparato para la decodificacion de imagenes. - Google Patents

Metodo y aparato para la decodificacion de imagenes.

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Publication number
MX2023004268A
MX2023004268A MX2023004268A MX2023004268A MX2023004268A MX 2023004268 A MX2023004268 A MX 2023004268A MX 2023004268 A MX2023004268 A MX 2023004268A MX 2023004268 A MX2023004268 A MX 2023004268A MX 2023004268 A MX2023004268 A MX 2023004268A
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MX
Mexico
Prior art keywords
prediction mode
intra prediction
current block
group
modes
Prior art date
Application number
MX2023004268A
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English (en)
Inventor
Shin Ji Park
Original Assignee
Gensquare Llc
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Publication date
Application filed by Gensquare Llc filed Critical Gensquare Llc
Publication of MX2023004268A publication Critical patent/MX2023004268A/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
    • H04N19/102—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
    • H04N19/102—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
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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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
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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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • H—ELECTRICITY
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    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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    • 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
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    • 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
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
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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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods 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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Abstract

Un método para la decodificación de imágenes de acuerdo con la presente invención comprende: reconstruir un indicador del grupo de modos de predicción intra y un índice del modo de predicción del bloque actual; crear un primer grupo con los modos de predicción intra válidos de los bloques a la izquierda y arriba del bloque actual; y, del grupo indicado por el indicador del grupo de modos de predicción intra, seleccionar un modo de predicción intra correspondiente al índice del modo de predicción como el modo de predicción intra del bloque actual, en donde el tamaño del bloque de predicción está de acuerdo con la información relacionada con el tamaño de la transformación. por lo tanto, en base a de los modos de predicción intra de los bloques a la izquierda y arriba del bloque actual, el indicador del grupo de modos de predicción intra y el índice del modo de predicción se determinan al incluir en el grupo, los modos con probabilidad alta de ser idénticos al modo de predicción intra del bloque actual, reduciéndose por ello la cantidad de información de predicción intra a ser codificada.
MX2023004268A 2011-10-24 2014-03-24 Metodo y aparato para la decodificacion de imagenes. MX2023004268A (es)

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KR20110108455 2011-10-24

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MX2023004268A true MX2023004268A (es) 2023-05-02

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MX2014003542A MX350187B (es) 2011-10-24 2012-04-20 Metodo y aparato para la decodificacion de imagenes.
MX2023004266A MX2023004266A (es) 2011-10-24 2014-03-24 Metodo y aparato para la decodificacion de imagenes.
MX2023004267A MX2023004267A (es) 2011-10-24 2014-03-24 Metodo y aparato para la decodificacion de imagenes.
MX2023004268A MX2023004268A (es) 2011-10-24 2014-03-24 Metodo y aparato para la decodificacion de imagenes.

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MX2014003542A MX350187B (es) 2011-10-24 2012-04-20 Metodo y aparato para la decodificacion de imagenes.
MX2023004266A MX2023004266A (es) 2011-10-24 2014-03-24 Metodo y aparato para la decodificacion de imagenes.
MX2023004267A MX2023004267A (es) 2011-10-24 2014-03-24 Metodo y aparato para la decodificacion de imagenes.

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US (10) US9036704B2 (es)
EP (5) EP2773118B1 (es)
JP (5) JP5611498B1 (es)
KR (7) KR101947658B1 (es)
CN (9) CN105338349B9 (es)
CY (1) CY1123669T1 (es)
DK (1) DK2773118T3 (es)
ES (1) ES2828734T3 (es)
HK (8) HK1215636A1 (es)
HR (1) HRP20201980T1 (es)
HU (1) HUE052290T2 (es)
LT (1) LT2773118T (es)
MX (4) MX350187B (es)
PL (1) PL2773118T3 (es)
PT (1) PT2773118T (es)
RS (1) RS61146B1 (es)
SI (1) SI2773118T1 (es)
WO (2) WO2013062197A1 (es)

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