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1. WO2020139013 - VIDEO ENCODING/DECODING METHOD, DEVICE, AND RECORDING MEDIUM STORING BITSTREAM THEREIN

Publication Number WO/2020/139013
Publication Date 02.07.2020
International Application No. PCT/KR2019/018595
International Filing Date 27.12.2019
IPC
H04N 19/11 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
11among a plurality of spatial predictive coding modes
H04N 19/186 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
186the unit being a colour or a chrominance component
H04N 19/119 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
119Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
H04N 19/61 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
60using transform coding
61in combination with predictive coding
H04N 19/124 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
124Quantisation
H04N 19/176 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
CPC
H04N 19/11
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
11among a plurality of spatial predictive coding modes
H04N 19/119
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
119Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
H04N 19/124
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
124Quantisation
H04N 19/176
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
H04N 19/186
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
186the unit being a colour or a chrominance component
H04N 19/61
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
60using transform coding
61in combination with predictive coding
Applicants
  • 한국전자통신연구원 ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE [KR]/[KR]
  • 성균관대학교산학협력단 RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY [KR]/[KR]
Inventors
  • 강정원 KANG, Jung Won
  • 이하현 LEE, Ha Hyun
  • 임성창 LIM, Sung Chang
  • 이진호 LEE, Jin Ho
  • 김휘용 KIM, Hui Yong
  • 전병우 JEON, Byeung Woo
  • 박지윤 PARK, Jee Yoon
Agents
  • 성병기 SUNG, Byung Kee
Priority Data
10-2018-017250428.12.2018KR
10-2018-017412231.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) VIDEO ENCODING/DECODING METHOD, DEVICE, AND RECORDING MEDIUM STORING BITSTREAM THEREIN
(FR) PROCÉDÉ DE CODAGE/DÉCODAGE VIDÉO, DISPOSITIF, ET SUPPORT D'ENREGISTREMENT SUR LEQUEL EST STOCKÉ UN FLUX BINAIRE
(KO) 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체
Abstract
(EN)
Disclosed in the present specification is a video decoding method. The video decoding method of the present invention comprises: a step for obtaining intra chrominance prediction information about a current block from a bitstream; a step for deriving the intra chrominance prediction mode of the current block on the basis of the intra chrominance prediction information; and a step for performing intra prediction on the current block on the basis of the intra chrominance prediction mode, wherein the intra chrominance prediction mode is any one among a linear model (LM) mode, a derived luma (DM) mode, a planar mode, a vertical mode, a horizontal mode, and a DC mode, and the first bit of the intra chrominance prediction information can be used to determine whether the intra chrominance prediction mode is an LM mode.
(FR)
La présente invention concerne un procédé de décodage vidéo. Le procédé de décodage vidéo selon la présente invention comprend : une étape consistant à obtenir des informations de prédiction de chrominance intra concernant un bloc courant à partir d'un flux binaire ; une étape consistant à dériver le mode de prédiction de chrominance intra du bloc courant sur la base des informations de prédiction de chrominance intra ; et une étape consistant à effectuer une prédiction intra sur le bloc courant sur la base du mode de prédiction de chrominance intra, le mode de prédiction de chrominance intra étant l'un d’un modèle linéaire (LM), d’un mode de luminance dérivée (DM), d’un mode planaire, d’un mode vertical, d’un mode horizontal et d’un mode CC, et le premier bit des informations de prédiction de chrominance intra pouvant être utilisé pour déterminer si le mode de prédiction de chrominance intra est un mode LM.
(KO)
본 명세서에서는 영상 복호화 방법이 개시된다. 본 발명의 영상 복호화 방법은 현재 블록의 색차 화면내 예측 정보를 상기 비트스트림으로부터 획득하는 단계; 상기 색차 화면내 예측 정보에 기초하여 상기 현재 블록의 색차 화면내 예측 모드를 유도하는 단계; 및 상기 색차 화면내 예측 모드에 기초하여 상기 현재 블록에 화면내 예측을 수행하는 단계를 포함하고, 상기 색차 화면내 예측 모드는 LM(Linear Model) 모드, DM(Derived Luma) 모드, Planar 모드, Vertical 모드, Horizontal 모드 및 DC 모드 중 어느 하나이고, 상기 색차 화면내 예측 정보의 첫 번째 비트는 상기 색차 화면내 예측 모드가 LM 모드인지를 판단하는데 이용될 수 있다.
Also published as
Latest bibliographic data on file with the International Bureau