MX2021016158A - Codificacion de contexto para informacion sobre el conjunto de nucleo de transformacion en el sistema de codificacion de imagen. - Google Patents

Codificacion de contexto para informacion sobre el conjunto de nucleo de transformacion en el sistema de codificacion de imagen.

Info

Publication number
MX2021016158A
MX2021016158A MX2021016158A MX2021016158A MX2021016158A MX 2021016158 A MX2021016158 A MX 2021016158A MX 2021016158 A MX2021016158 A MX 2021016158A MX 2021016158 A MX2021016158 A MX 2021016158A MX 2021016158 A MX2021016158 A MX 2021016158A
Authority
MX
Mexico
Prior art keywords
context
information
transform kernel
kernel set
basis
Prior art date
Application number
MX2021016158A
Other languages
English (en)
Inventor
Jaehyun Lim
Moonmo Koo
Junghak Nam
Seunghwan Kim
Original Assignee
Lg Electronics Inc
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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2021016158A publication Critical patent/MX2021016158A/es

Links

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
    • H04N19/10—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/102—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
    • 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
    • H04N19/169—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
    • H04N19/169—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
    • H04N19/18—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 a set of transform coefficients
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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

Abstract

La presente invención se refiere a un método de decodificación de imagen, de conformidad con el presente documento, que comprende un paso para generar muestras residuales para un bloque actual con base en la información residual, en donde las muestras residuales son generadas con base en la información sobre un conjunto de núcleo de transformación y coeficientes de transformación para el bloque actual, los coeficientes de transformación se derivan con base en la información residual, y la información sobre el conjunto de núcleo de transformación representa un conjunto de núcleo de transformación que será aplicado al bloque actual de entre los candidatos del conjunto de núcleo de transformación. Al menos un bin de entre los bins de una cadena de bin de la información sobre el conjunto de núcleo de transformación se deriva con base en la codificación de contexto, y la codificación de contexto es realizada basada en al menos un modelo de contexto.
MX2021016158A 2019-06-19 2020-06-11 Codificacion de contexto para informacion sobre el conjunto de nucleo de transformacion en el sistema de codificacion de imagen. MX2021016158A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962863815P 2019-06-19 2019-06-19
PCT/KR2020/007598 WO2020256345A1 (ko) 2019-06-19 2020-06-11 영상 코딩 시스템에서 변환 커널 세트에 관한 정보에 대한 컨텍스트 코딩

Publications (1)

Publication Number Publication Date
MX2021016158A true MX2021016158A (es) 2022-03-04

Family

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Family Applications (1)

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MX2021016158A MX2021016158A (es) 2019-06-19 2020-06-11 Codificacion de contexto para informacion sobre el conjunto de nucleo de transformacion en el sistema de codificacion de imagen.

Country Status (8)

Country Link
US (2) US11622114B2 (es)
EP (1) EP3989561A4 (es)
JP (2) JP7302036B2 (es)
KR (1) KR20220000404A (es)
CN (1) CN114128267A (es)
BR (1) BR112021025530A2 (es)
MX (1) MX2021016158A (es)
WO (1) WO2020256345A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020256345A1 (ko) * 2019-06-19 2020-12-24 엘지전자 주식회사 영상 코딩 시스템에서 변환 커널 세트에 관한 정보에 대한 컨텍스트 코딩

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100717055B1 (ko) * 2005-11-18 2007-05-10 삼성전자주식회사 Ｃａｂａｃ 복호기에서 복수의 이진 값들을 파이프라인방식에 의하여 복호화하는 방법 및 이를 위한 복호화 장치
KR20120034044A (ko) * 2010-09-30 2012-04-09 한국전자통신연구원 영상 변환 부호화/복호화 방법 및 장치
US20140092985A1 (en) * 2012-09-28 2014-04-03 Sharp Laboratories Of America, Inc. Content initialization for enhancement layer coding
EP4106333A1 (en) * 2016-02-12 2022-12-21 Samsung Electronics Co., Ltd. Image encoding method and apparatus, and image decoding method and apparatus
US10708164B2 (en) * 2016-05-03 2020-07-07 Qualcomm Incorporated Binarizing secondary transform index
CN109076222B9 (zh) * 2016-05-13 2021-10-15 索尼公司 图像处理装置和方法
US11589066B2 (en) * 2017-07-04 2023-02-21 Samsung Electronics Co., Ltd. Video decoding method and apparatus using multi-core transform, and video encoding method and apparatus using multi-core transform
EP3609184A4 (en) * 2017-07-04 2020-04-01 Samsung Electronics Co., Ltd. IMAGE CODING METHOD AND APPARATUS, AND IMAGE DECODING METHOD AND APPARATUS
JP2020053924A (ja) 2018-09-28 2020-04-02 シャープ株式会社 動画像符号化装置、動画像復号装置
WO2020256345A1 (ko) * 2019-06-19 2020-12-24 엘지전자 주식회사 영상 코딩 시스템에서 변환 커널 세트에 관한 정보에 대한 컨텍스트 코딩

Also Published As

Publication number Publication date
JP7302036B2 (ja) 2023-07-03
KR20220000404A (ko) 2022-01-03
BR112021025530A2 (pt) 2022-02-01
JP2022538031A (ja) 2022-08-31
US20230209061A1 (en) 2023-06-29
JP7476402B2 (ja) 2024-04-30
CN114128267A (zh) 2022-03-01
WO2020256345A1 (ko) 2020-12-24
US20220191500A1 (en) 2022-06-16
EP3989561A1 (en) 2022-04-27
US11622114B2 (en) 2023-04-04
JP2023112079A (ja) 2023-08-10
EP3989561A4 (en) 2023-05-24

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