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1. WO2019045391 - METHOD AND DEVICE FOR VIDEO SIGNAL PROCESSING

Publication Number WO/2019/045391
Publication Date 07.03.2019
International Application No. PCT/KR2018/009867
International Filing Date 27.08.2018
IPC
H04N 19/583 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
503involving temporal prediction
51Motion estimation or motion compensation
583Motion compensation with overlapping blocks
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 19/103 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
CPC
H04N 19/105
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
105Selection 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
H04N 19/132
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
132Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
H04N 19/159
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
159Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
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 19/513
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
513Processing of motion vectors
H04N 19/583
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
583Motion compensation with overlapping blocks
Applicants
  • 주식회사 케이티 KT CORPORATION [KR]/[KR]
Inventors
  • 이배근 LEE, Bae Keun
Agents
  • 최윤서 CHOE, Yun Seo
Priority Data
10-2017-010963829.08.2017KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD AND DEVICE FOR VIDEO SIGNAL PROCESSING
(FR) PROCÉDÉ ET DISPOSITIF DE TRAITEMENT DE SIGNAL VIDÉO
(KO) 비디오 신호 처리 방법 및 장치
Abstract
(EN)
An image decoding method according to the present invention may comprise: a step of acquiring motion information of a current block; a step of performing motion compensation on the basis of the motion information, thereby acquiring a first prediction block for a first sub block in the current block; and a step of performing overlapped block motion compensation on the first sub block, thereby acquiring a second prediction block.
(FR)
L'invention concerne un procédé de décodage d'image qui peut comprendre : une étape d'acquisition d'informations de mouvement d'un bloc courant; une étape de réalisation d'une compensation de mouvement sur la base des informations de mouvement, ce qui permet d'acquérir un premier bloc de prédiction pour un premier sous-bloc dans le bloc courant; et une étape consistant à effectuer une compensation de mouvement de bloc chevauché sur le premier sous-bloc, ce qui permet d'acquérir un second bloc de prédiction.
(KO)
본 발명에 따른 영상 복호화 방법은, 현재 블록에 대한 움직임 정보를 획득하는 단계, 상기 움직임 정보를 기초로 움직임 보상을 수행하여, 상기 현재 블록 내 제1 서브 블록에 대한 제1 예측 블록을 획득하는 단계, 및 상기 제1 서브 블록에 대해 블록 중첩 움직임 보상을 수행하여 제2 예측 블록을 획득하는 단계를 포함할 수 있다.
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