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1. WO2020096388 - METHOD FOR ENCODING/DECODING IMAGE SIGNAL, AND APPARATUS THEREFOR

Publication Number WO/2020/096388
Publication Date 14.05.2020
International Application No. PCT/KR2019/015096
International Filing Date 07.11.2019
IPC
H04N 19/503 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
H04N 19/139 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
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
136Incoming video signal characteristics or properties
137Motion inside a coding unit, e.g. average field, frame or block difference
139Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
H04N 19/122 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
12Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform and sub-band transform or selection between H.263 and H.264
122Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
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
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 19/105 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
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
Applicants
  • 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. [CN]/[CN]
Inventors
  • 이배근 LEE, Bae Keun
Agents
  • 특허법인 이룸리온 ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM
Priority Data
10-2018-013625508.11.2018KR
10-2018-014889027.11.2018KR
10-2018-014906427.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR ENCODING/DECODING IMAGE SIGNAL, AND APPARATUS THEREFOR
(FR) PROCÉDÉ DE CODAGE/DÉCODAGE D'UN SIGNAL D'IMAGE ET APPAREIL ASSOCIÉ
(KO) 영상 신호 부호화/복호화 방법 및 이를 위한 장치
Abstract
(EN)
A method for decoding an image, according to the present invention, comprises the steps of: determining whether a coding block is divided into a first prediction unit and a second prediction unit; determining a partition type of the coding block when determining that the coding block is divided; deriving first motion information about a first prediction unit and second motion information about a second prediction unit within the coding block; and acquiring a prediction sample within the coding block on the basis of the first motion information and the second motion information.
(FR)
La présente invention concerne un procédé de décodage d'une image, comprenant les étapes consistant à : déterminer si un bloc de codage est divisé en une première unité de prédiction et une seconde unité de prédiction; déterminer un type de partition du bloc de codage lors de la détermination du fait que le bloc de codage est divisé; à dériver des premières informations de mouvement concernant une première unité de prédiction et des secondes informations de mouvement concernant une seconde unité de prédiction à l'intérieur du bloc de codage; et à acquérir un échantillon de prédiction à l'intérieur du bloc de codage sur la base des premières informations de mouvement et des secondes informations de mouvement.
(KO)
본 발명에 따른 영상 복호화 방법은, 코딩 블록을 제1 예측 유닛 및 제2 예측 유닛으로 분할할 것인지 여부를 결정하는 단계, 상기 코딩 블록을 분할하는 것으로 결정된 경우, 상기 코딩 블록의 파티션 타입을 결정하는 단계, 상기 코딩 블록 내 상기 제1 예측 유닛에 대한 제1 움직임 정보 및 제2 예측 유닛에 대한 제2 움직임 정보를 유도하는 단계, 및 상기 제1 움직임 정보 및 상기 제2 움직임 정보에 기초하여, 상기 코딩 블록 내 예측 샘플을 획득하는 단계를 포함한다.
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