MX338748B - Metodo y aparato para la decodificacion del modo de prediccion intra. - Google Patents

Metodo y aparato para la decodificacion del modo de prediccion intra.

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Publication number
MX338748B
MX338748B MX2015003303A MX2015003303A MX338748B MX 338748 B MX338748 B MX 338748B MX 2015003303 A MX2015003303 A MX 2015003303A MX 2015003303 A MX2015003303 A MX 2015003303A MX 338748 B MX338748 B MX 338748B
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MX
Mexico
Prior art keywords
intra prediction
prediction mode
modes
current block
directional
Prior art date
Application number
MX2015003303A
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English (en)
Inventor
Shin Ji Park
Original Assignee
Infobridge Pte Ltd
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Publication date
Application filed by Infobridge Pte Ltd filed Critical Infobridge Pte Ltd
Publication of MX338748B publication Critical patent/MX338748B/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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or 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
    • H04N19/10—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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/169—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
    • H04N19/50—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
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression

Abstract

El método para la decodificación del modo de predicción intra de acuerdo con la presente invención comprende: restablecer el indicador del grupo de modos de predicción intra y el índice del modo de predicción; crear el grupo MPM que comprende gres modos de predicción intra usando los modos de predicción intra válidos de los bloques izquierdo y arriba del bloque actual; y seleccionar, como el modo de predicción intra del bloque actual, un modo de predicción intra dentro del grupo correspondiente al indicador del modo de predicción y el índice del modo de predicción, en donde, los modos de predicción intra no direccionales tienen números del modo de predicción intra menores que los modos de predicción intra direccionales. Por lo tanto, la eficiencia de la codificación del modo de predicción intra puede ser mejorada usando los modos que tengan una alta probabilidad de ser idénticos al modo de predicción intra del bloque actual, sobre la base de los modos de predicción intra de los bloques izquierdo y arriba del bloque actual. Adicionalmente, la cantidad de información necesaria para codificar el modo de predicción intra del bloque actual puede ser reducida al configurar el método de modo tal que a los modos de predicción no direccionales se les asignen índices que tengan baja frecuencia de aparición.
MX2015003303A 2011-10-24 2014-03-26 Metodo y aparato para la decodificacion del modo de prediccion intra. MX338748B (es)

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KR20110108448 2011-10-24

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MX2014003707A MX2014003707A (es) 2011-10-24 2012-04-20 Metodo y aparato para la decodificacion del modo de prediccion intra.
MX2015003303A MX338748B (es) 2011-10-24 2014-03-26 Metodo y aparato para la decodificacion del modo de prediccion intra.

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US (7) US9854262B2 (es)
EP (6) EP2945380B1 (es)
JP (5) JP5750579B2 (es)
KR (2) KR20130045152A (es)
CN (11) CN104935942B (es)
CY (1) CY1123141T1 (es)
DK (1) DK2950535T3 (es)
ES (4) ES2900727T3 (es)
HK (5) HK1214055A1 (es)
HR (1) HRP20201477T1 (es)
HU (4) HUE056377T2 (es)
LT (1) LT2950535T (es)
MX (2) MX2014003707A (es)
PL (4) PL2945380T3 (es)
PT (1) PT2950535T (es)
RS (1) RS60769B1 (es)
SI (1) SI2950535T1 (es)
WO (2) WO2013062195A1 (es)

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CN104247423B (zh) * 2012-03-21 2018-08-07 联发科技（新加坡）私人有限公司 可伸缩视频编码系统的帧内模式编码方法和装置

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