MX2021005939A - Metodo y aparato de codificacion/decodificacion de imagen, y medio de registro que almacena flujo de bits. - Google Patents

Metodo y aparato de codificacion/decodificacion de imagen, y medio de registro que almacena flujo de bits.

Info

Publication number
MX2021005939A
MX2021005939A MX2021005939A MX2021005939A MX2021005939A MX 2021005939 A MX2021005939 A MX 2021005939A MX 2021005939 A MX2021005939 A MX 2021005939A MX 2021005939 A MX2021005939 A MX 2021005939A MX 2021005939 A MX2021005939 A MX 2021005939A
Authority
MX
Mexico
Prior art keywords
decoding method
recording medium
medium storing
image encoding
context
Prior art date
Application number
MX2021005939A
Other languages
English (en)
Inventor
Jin Ho Lee
Sung Chang Lim
Jung Won Kang
Ha Hyun Lee
Hui Yong Kim
Dae Yeon Kim
Wook Je Jeong
Hyun Gyu Kim
Original Assignee
Electronics & Telecommunications Res Inst
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 Electronics & Telecommunications Res Inst filed Critical Electronics & Telecommunications Res Inst
Publication of MX2021005939A publication Critical patent/MX2021005939A/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
    • H04N19/90—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
    • 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
    • H04N19/169—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
    • H04N19/60—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
    • H04N19/61—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
    • H04N19/10—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

En la presente especificación se divulga un método de decodificación de imagen. Un método de decodificación de una imagen, el método puede comprender determinar si realizar una actualización de contexto para un primer elemento de sintaxis de un bloque actual, actualizar, con base en la determinación, un contexto para la decodificación por entropía del primer elemento de sintaxis y generar, con base en el contexto actualizado, un bin para el primer elemento de sintaxis, y en donde si realizar la actualización de contexto se determina con base en el número de elementos de sintaxis predeterminados predecodificados para el bloque actual.
MX2021005939A 2018-11-21 2019-11-21 Metodo y aparato de codificacion/decodificacion de imagen, y medio de registro que almacena flujo de bits. MX2021005939A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20180144369 2018-11-21
KR20190025071 2019-03-05
PCT/KR2019/016059 WO2020106089A1 (ko) 2018-11-21 2019-11-21 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체

Publications (1)

Publication Number Publication Date
MX2021005939A true MX2021005939A (es) 2021-07-21

Family

ID=70774393

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021005939A MX2021005939A (es) 2018-11-21 2019-11-21 Metodo y aparato de codificacion/decodificacion de imagen, y medio de registro que almacena flujo de bits.

Country Status (5)

Country Link
US (2) US11570440B2 (es)
KR (1) KR20200060282A (es)
CN (1) CN113170209A (es)
MX (1) MX2021005939A (es)
WO (1) WO2020106089A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020182907A1 (en) * 2019-03-12 2020-09-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selective inter-component transform (ict) for image and video coding
EP4024868A4 (en) * 2019-08-31 2023-09-27 LG Electronics Inc. VIDEO OR IMAGE CODING METHOD AND APPARATUS THEREOF

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10300048B4 (de) * 2002-01-05 2005-05-12 Samsung Electronics Co., Ltd., Suwon Verfahren und Vorrichtung zur Bildcodierung und -decodierung
KR100873636B1 (ko) 2005-11-14 2008-12-12 삼성전자주식회사 단일 부호화 모드를 이용하는 영상 부호화/복호화 방법 및장치
WO2012134246A2 (ko) * 2011-04-01 2012-10-04 엘지전자 주식회사 엔트로피 디코딩 방법 및 이를 이용하는 디코딩 장치
US9088796B2 (en) * 2011-11-07 2015-07-21 Sharp Kabushiki Kaisha Video decoder with enhanced CABAC decoding
US9503717B2 (en) * 2012-01-09 2016-11-22 Texas Instruments Incorporated Context adaptive binary arithmetic coding (CABAC) with scalable throughput and coding efficiency
US9584802B2 (en) 2012-04-13 2017-02-28 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
WO2020060867A1 (en) * 2018-09-21 2020-03-26 Interdigital Vc Holdings, Inc. Scalar quantizer decision scheme for dependent scalar quantization

Also Published As

Publication number Publication date
US11570440B2 (en) 2023-01-31
CN113170209A (zh) 2021-07-23
US20220014749A1 (en) 2022-01-13
US20230132843A1 (en) 2023-05-04
KR20200060282A (ko) 2020-05-29
WO2020106089A1 (ko) 2020-05-28

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