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1. WO2020141833 - IMAGE DECODING METHOD, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, AND COMPUTER-READABLE RECORDING MEDIUM

Publication Number WO/2020/141833
Publication Date 09.07.2020
International Application No. PCT/KR2019/018722
International Filing Date 30.12.2019
IPC
H04N 19/103 2014.01
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
H04N 19/70 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
70characterised by syntax aspects related to video coding, e.g. related to compression standards
H04N 19/176 2014.01
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 19/50 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
H04N 19/184 2014.01
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
184the unit being bits, e.g. of the compressed video stream
H04N 19/119 2014.01
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
CPC
H04N 19/103
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
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 19/176
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 19/184
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
184the unit being bits, e.g. of the compressed video stream
H04N 19/50
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
H04N 19/70
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
70characterised by syntax aspects related to video coding, e.g. related to compression standards
Applicants
  • 디지털인사이트 주식회사 DIGITALINSIGHTS INC. [KR]/[KR]
Inventors
  • 안용조 AHN, Yong Jo
Agents
  • 성병기 SUNG, Byung Kee
Priority Data
10-2019-000042002.01.2019KR
10-2019-000108504.01.2019KR
10-2019-000684218.01.2019KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) IMAGE DECODING METHOD, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, AND COMPUTER-READABLE RECORDING MEDIUM
(FR) PROCÉDÉ DE DÉCODAGE D'IMAGE, PROCÉDÉ DE CODAGE D'IMAGE, DISPOSITIF DE DÉCODAGE D'IMAGE, DISPOSITIF DE CODAGE D'IMAGE, ET SUPPORT D'INFORMATIONS LISIBLE PAR ORDINATEUR
(KO) 영상 복호화 방법, 영상 부호화 방법, 영상 복호화 장치, 영상 부호화 장치 및 컴퓨터 판독 가능한 기록 매체
Abstract
(EN)
Provided are an image decoding method, an image decoding device, an image encoding method, an image encoding device, and a computer-readable recording medium. The image decoding method according to the present invention comprises the steps of: decoding information about a prediction method of a current block; determining a prediction method of the current block on the basis of the information about the prediction method; and generating a prediction block of the current block by performing prediction for the current block on the basis of the determined prediction method, wherein the information about the prediction method of the current block may include at least one of information about subblock merge, information about MMVD, information about multi hypothesis prediction, and information about partition prediction.
(FR)
L'invention concerne un procédé de décodage d'image, un dispositif de décodage d'image, un procédé de codage d'image, un dispositif de codage d'image et un support d'informations lisible par ordinateur. Le procédé de décodage d'image selon la présente invention comprend les étapes consistant à : décoder des informations concernant un procédé de prédiction d'un bloc courant; déterminer un procédé de prédiction du bloc courant sur la base des informations concernant le procédé de prédiction; et générer un bloc de prédiction du bloc courant par une application d'une prédiction au bloc courant sur la base du procédé de prédiction déterminé, les informations concernant le procédé de prédiction du bloc courant pouvant comprendre au moins certaines informations parmi des informations concernant la fusion de sous-blocs, des informations concernant la MMVD, des informations concernant une prédiction à hypothèses multiples, et des informations concernant la prédiction de partition.
(KO)
영상 복호화 방법, 영상 복호화 장치, 영상 부호화 방법, 영상 부호화 장치 및 컴퓨터 판독 가능한 기록 매체가 제공된다. 본 발명에 따른 영상 복호화 방법은, 현재 블록의 예측 방법에 관한 정보를 복호화하는 단계, 상기 예측 방법에 관한 정보에 기초하여 상기 현재 블록의 예측 방법을 결정하는 단계, 상기 결정된 예측 방법에 기초하여 상기 현재 블록에 대한 예측을 수행함으로써, 상기 현재 블록의 예측 블록을 생성하는 단계를 포함하고, 상기 현재 블록의 예측 방법에 관한 정보는 서브블록 머지(subblock merge)에 관한 정보, MMVD에 관한 정보, 다중 추정 예측(multi hypothesis prediction)에 관한 정보 및 분할 예측(partition prediction)에 관한 정보 중 적어도 하나를 포함할 수 있다.
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