MX2014003736A - Dispositivo de decodificacion de imagenes, metodo de decodificacion de imagenes y dispositivo de codificacion de imagenes. - Google Patents

Dispositivo de decodificacion de imagenes, metodo de decodificacion de imagenes y dispositivo de codificacion de imagenes.

Info

Publication number
MX2014003736A
MX2014003736A MX2014003736A MX2014003736A MX2014003736A MX 2014003736 A MX2014003736 A MX 2014003736A MX 2014003736 A MX2014003736 A MX 2014003736A MX 2014003736 A MX2014003736 A MX 2014003736A MX 2014003736 A MX2014003736 A MX 2014003736A
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MX
Mexico
Prior art keywords
image decoding
motion
image
compensation parameter
prediction
Prior art date
Application number
MX2014003736A
Other languages
English (en)
Other versions
MX337446B (es
Inventor
Tomoyuki Yamamoto
Tomohiro Ikai
Yukinobu Yasugi
Original Assignee
Sharp Kk
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 Sharp Kk filed Critical Sharp Kk
Publication of MX2014003736A publication Critical patent/MX2014003736A/es
Publication of MX337446B publication Critical patent/MX337446B/es

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Classifications

    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/44—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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
    • H04N19/90—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
    • H04N19/96—Tree coding, e.g. quad-tree coding

Abstract

Se implementa un proceso de codificación/decodificación eficiente que reduce el tamaño de imágenes codificadas cuando se usa división asimétrica y toma ventaja de las propiedades de división asimétrica. Un dispositivo de decodificación de imágenes que es provisto con una unidad de derivación de parámetros de compensación de movimiento que deriva un parámetro de compensación de movimiento que indica un esquema de predicción, en particular ya sea predicción unidireccional o bidireccional. Si el tamaño de unidades de predicción es menor que o igual a un tamaño prescrito, la unidad de derivación de parámetros de compensación de movimiento cambia esquemas de predicción para la derivación del parámetro de compensación de movimiento.
MX2014003736A 2011-09-29 2012-09-28 Dispositivo de decodificacion de imagenes, metodo de decodificacion de imagenes y dispositivo de codificacion de imagenes. MX337446B (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011215475 2011-09-29
JP2011242843 2011-11-04
JP2011289936 2011-12-28
PCT/JP2012/075200 WO2013047811A1 (ja) 2011-09-29 2012-09-28 画像復号装置、画像復号方法および画像符号化装置

Publications (2)

Publication Number Publication Date
MX2014003736A true MX2014003736A (es) 2014-05-01
MX337446B MX337446B (es) 2016-03-07

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
MX2014003736A MX337446B (es) 2011-09-29 2012-09-28 Dispositivo de decodificacion de imagenes, metodo de decodificacion de imagenes y dispositivo de codificacion de imagenes.
MX2016002760A MX353235B (es) 2011-09-29 2012-09-28 Dispositivo de decodificación de imágenes, método de decodificación de imágenes y dispositivo de codificación de imágenes.

Family Applications After (1)

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MX2016002760A MX353235B (es) 2011-09-29 2012-09-28 Dispositivo de decodificación de imágenes, método de decodificación de imágenes y dispositivo de codificación de imágenes.

Country Status (9)

Country Link
US (5) US10075733B2 (es)
EP (2) EP2763414B1 (es)
JP (2) JP5976658B2 (es)
CN (3) CN108650508B (es)
DK (1) DK2763414T3 (es)
IN (1) IN2014CN02456A (es)
MX (2) MX337446B (es)
MY (1) MY164898A (es)
WO (1) WO2013047811A1 (es)

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