WO2020141813A3 - 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 - Google Patents

영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 Download PDF

Info

Publication number
WO2020141813A3
WO2020141813A3 PCT/KR2019/018597 KR2019018597W WO2020141813A3 WO 2020141813 A3 WO2020141813 A3 WO 2020141813A3 KR 2019018597 W KR2019018597 W KR 2019018597W WO 2020141813 A3 WO2020141813 A3 WO 2020141813A3
Authority
WO
WIPO (PCT)
Prior art keywords
decoding method
image encoding
recording medium
medium storing
block
Prior art date
Application number
PCT/KR2019/018597
Other languages
English (en)
French (fr)
Other versions
WO2020141813A2 (ko
Inventor
임성창
강정원
이하현
이진호
김휘용
이영렬
김명준
김남욱
김양우
정지연
김재곤
Original Assignee
한국전자통신연구원
세종대학교 산학협력단
한국항공대학교산학협력단
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 한국전자통신연구원, 세종대학교 산학협력단, 한국항공대학교산학협력단 filed Critical 한국전자통신연구원
Priority to CN201980087328.2A priority Critical patent/CN113273213A/zh
Priority to US17/420,084 priority patent/US20220086428A1/en
Publication of WO2020141813A2 publication Critical patent/WO2020141813A2/ko
Publication of WO2020141813A3 publication Critical patent/WO2020141813A3/ko

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
    • H04N19/103—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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • H04N19/132—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
    • H04N19/134—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
    • H04N19/10—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
    • H04N19/50—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
    • H04N19/90—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

Landscapes

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

Abstract

영상 부호화/복호화 방법 및 장치가 제공된다. 본 발명에 따른 영상 복호화 방법은, 현재 색차 블록의 화면 내 예측 모드를 복원하는 단계, 상기 화면 내 예측 모드가 CCLM(Cross-Component Linear Model) 모드인 경우, 상기 현재 색차 블록의 주변 샘플 및 상기 현재 색차 블록에 대응하는 대응 휘도 블록의 주변 샘플에 기초하여 적어도 하나의 대표값을 유도하는 단계, 상기 적어도 하나의 대표값을 이용하여 CCLM의 파라미터를 유도하는 단계 및 상기 CCLM의 파라미터를 이용하여 상기 현재 색차 블록의 예측 블록을 생성하는 단계를 포함할 수 있다.
PCT/KR2019/018597 2018-12-31 2019-12-27 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 WO2020141813A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980087328.2A CN113273213A (zh) 2018-12-31 2019-12-27 图像编码/解码方法和设备以及存储比特流的记录介质
US17/420,084 US20220086428A1 (en) 2018-12-31 2019-12-27 Image encoding/decoding method and apparatus, and recording medium storing bitstream

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180174190 2018-12-31
KR10-2018-0174190 2018-12-31
KR20190047373 2019-04-23
KR10-2019-0047373 2019-04-23

Publications (2)

Publication Number Publication Date
WO2020141813A2 WO2020141813A2 (ko) 2020-07-09
WO2020141813A3 true WO2020141813A3 (ko) 2020-12-17

Family

ID=71406538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/018597 WO2020141813A2 (ko) 2018-12-31 2019-12-27 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체

Country Status (4)

Country Link
US (1) US20220086428A1 (ko)
KR (1) KR20200083317A (ko)
CN (1) CN113273213A (ko)
WO (1) WO2020141813A2 (ko)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2020235190B2 (en) 2019-03-08 2023-06-01 Beijing Bytedance Network Technology Co., Ltd. Constraints on model-based reshaping in video processing
CN117528068A (zh) 2019-04-18 2024-02-06 北京字节跳动网络技术有限公司 视频编解码中的跨分量模式中的选择性使用
EP3935855A4 (en) 2019-04-23 2022-09-21 Beijing Bytedance Network Technology Co., Ltd. METHOD OF CROSS-COMPONENT DEPENDENCE REDUCTION
EP3949395A4 (en) 2019-05-08 2022-06-29 Beijing Bytedance Network Technology Co., Ltd. Conditions for applicability of cross-component coding
CN117478908A (zh) * 2019-06-22 2024-01-30 北京字节跳动网络技术有限公司 色度残差缩放的语法元素
JP7460748B2 (ja) 2019-07-07 2024-04-02 北京字節跳動網絡技術有限公司 クロマ残差スケーリングのシグナリング
CN114175632A (zh) * 2019-07-26 2022-03-11 北京字节跳动网络技术有限公司 对视频编解码模式的块尺寸相关使用
WO2023138628A1 (en) * 2022-01-21 2023-07-27 Mediatek Inc. Method and apparatus of cross-component linear model prediction in video coding system
US20230379479A1 (en) * 2022-05-17 2023-11-23 Tencent America LLC Systems and methods for determining chroma samples in an intra prediction mode of video coding
WO2023241637A1 (en) * 2022-06-15 2023-12-21 Mediatek Inc. Method and apparatus for cross component prediction with blending in video coding systems
WO2023244592A1 (en) * 2022-06-17 2023-12-21 Innopeak Technology, Inc. System and method for chromaticity intra prediction
WO2024022146A1 (en) * 2022-07-27 2024-02-01 Mediatek Inc. Using mulitple reference lines for prediction
WO2024088340A1 (en) * 2022-10-26 2024-05-02 Mediatek Inc. Method and apparatus of inheriting multiple cross-component models in video coding system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140022959A (ko) * 2011-06-20 2014-02-25 가부시키가이샤 제이브이씨 켄우드 화상 부호화 장치, 화상 부호화 방법 및 화상 부호화 프로그램, 또한 화상 복호 장치, 화상 복호 방법 및 화상 복호 프로그램
KR20160023729A (ko) * 2013-06-21 2016-03-03 퀄컴 인코포레이티드 변위 벡터들을 이용한 예측 블록으로부터의 인트라 예측
US20170366818A1 (en) * 2015-01-22 2017-12-21 Mediatek Singapore Pte. Ltd. Method of Video Coding for Chroma Components
US20180146191A1 (en) * 2016-11-22 2018-05-24 Futurewei Technologies, Inc. System and Method for Coding Intra Prediction Mode using a Second Set of Most Probable Modes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2013003679A (es) * 2010-10-01 2013-08-12 Samsung Electronics Co Ltd Metodo y aparato de intraprediccion de imagen.
WO2018131838A1 (ko) * 2017-01-11 2018-07-19 엘지전자 주식회사 영상 코딩 시스템에서 인트라 예측에 따른 영상 디코딩 방법 및 장치
KR102543468B1 (ko) * 2018-10-04 2023-06-14 엘지전자 주식회사 Cclm에 기반한 인트라 예측 방법 및 그 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140022959A (ko) * 2011-06-20 2014-02-25 가부시키가이샤 제이브이씨 켄우드 화상 부호화 장치, 화상 부호화 방법 및 화상 부호화 프로그램, 또한 화상 복호 장치, 화상 복호 방법 및 화상 복호 프로그램
KR20160023729A (ko) * 2013-06-21 2016-03-03 퀄컴 인코포레이티드 변위 벡터들을 이용한 예측 블록으로부터의 인트라 예측
US20170366818A1 (en) * 2015-01-22 2017-12-21 Mediatek Singapore Pte. Ltd. Method of Video Coding for Chroma Components
US20180146191A1 (en) * 2016-11-22 2018-05-24 Futurewei Technologies, Inc. System and Method for Coding Intra Prediction Mode using a Second Set of Most Probable Modes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHOI (LGE) J; HEO J; YOO S; LI L; CHOI J; LIM J; KIM (LGE) S: "CE3-related : Reduced number of reference samples for CCLM parameter calculation", 12. JVET MEETING; 20181003 - 20181012; MACAO; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. JVET-L0138, 1 October 2018 (2018-10-01), pages 1 - 5, XP030194151 *

Also Published As

Publication number Publication date
KR20200083317A (ko) 2020-07-08
US20220086428A1 (en) 2022-03-17
CN113273213A (zh) 2021-08-17
WO2020141813A2 (ko) 2020-07-09

Similar Documents

Publication Publication Date Title
WO2020141813A3 (ko) 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체
WO2018097693A3 (ko) 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체
MX2021009894A (es) Derivación de parámetros para intrapredicción.
EP4290863A3 (en) Interaction between core transform and secondary transform
MX2021009788A (es) Seleccion de muestra colindante para intraprediccion.
JP2022188128A (ja) 適応色空間変換の符号化
PH12021550112A1 (en) Video encoder, video decoder, and corresponding encoding and decoding methods
EP4351139A3 (en) Video encoding/decoding method and device, and recording medium storing bit stream
JP2016026457A5 (ko)
RU2017134677A (ru) Регулировка динамического диапазона для кодирования видео с расширенным динамическим диапазоном и широкой цветовой гаммой
WO2019024438A1 (zh) 一种图像编码方法
JP2020529766A5 (ko)
MX2020013802A (es) Metodo y aparato para codificar/decodificar imagenes usando parametros de cuantificacion, y medio de grabacion que almacena flujo de bits.
MX2019003553A (es) Metodo de codificacion de video, metodo de decodificacion de video y terminal.
FI3941052T3 (fi) Kuvankoodauslaitteisto ja kvantisointiparametrien johtamiseen perustuva kuvankoodausmenetelmä
JP2008536452A5 (ko)
JP2021506157A5 (ko)
JP2022539786A (ja) 画像成分の予測方法、エンコーダ、デコーダ及び記憶媒体
MX2021008450A (es) Metodo y dispositivo de codificacion de imagen para realizar intra prediccion basada la linea de multi-referencia (mlr).
PH12021550276A1 (en) Video decoding method and apparatus, and video encoding method and apparatus
MX2021000650A (es) Metodo y aparato de codificacion/decodificacion de imagen, y medio de grabacion en el cual el flujo de bits es almacenado.
WO2019216716A3 (ko) 부호화 방법 및 그 장치, 복호화 방법 및 그 장치
MX2022006128A (es) Metodo y aparato de codificacion/decodificacion de imagen, y medio de registro en el cual se almacena flujo de bits.
WO2020139006A3 (ko) 화면 내 예측 모드 유도 방법 및 장치
EP4283999A3 (en) Video decoding method, and video decoder

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19907477

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19907477

Country of ref document: EP

Kind code of ref document: A2