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1. WO2020071836 - IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

Publication Number WO/2020/071836
Publication Date 09.04.2020
International Application No. PCT/KR2019/013006
International Filing Date 04.10.2019
IPC
H04N 19/625 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
60using transform coding
625using discrete cosine transform
H04N 19/61 2014.01
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 2014.01
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
124Quantisation
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 19/119
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 19/61
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
H04N 19/625
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
60using transform coding
625using discrete cosine transform [DCT]
Applicants
  • 한국전자통신연구원 ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE [KR]/[KR]
  • 성균관대학교 산학협력단 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
10-2018-011927105.10.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM
(FR) PROCÉDÉ ET APPAREIL DE CODAGE/DÉCODAGE D'IMAGE ET SUPPORT D'ENREGISTREMENT STOCKANT UN FLUX BINAIRE
(KO) 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체
Abstract
(EN)
The present specification discloses an image decoding method. The image decoding method of the present invention may comprise the steps of: obtaining transform skip information of a current block from a bitstream; obtaining multi-transform selection information of the current block on the basis of the transform skip information from the bitstream; and performing inverse transform on the current block on the basis of the multi-transform selection information, wherein the multi-transform selection information is used to configure each of a horizontal direction transform type and a vertical direction transform type.
(FR)
La présente invention concerne un procédé de décodage d'image. Le procédé de décodage d'image d'après la présente invention peut comprendre les étapes consistant à : obtenir des informations de saut de transformées d'un bloc actuel provenant d'un flux binaire ; obtenir des informations de sélection de multiples transformées du bloc actuel sur la base des informations de saut de transformées provenant du flux binaire ; et effectuer une transformée inverse sur le bloc actuel sur la base des informations de sélection de multiples transformées, les informations de sélection de multiples transformées servant à configurer un type de transformée horizontale et un type de transformée verticale.
(KO)
본 명세서에서는 영상 복호화 방법이 개시된다. 본 발명의 영상 복호화 방법은, 비트스트림으로부터 현재 블록의 변환스킵 정보를 획득하는 단계, 상기 비트스트림으로부터 변환스킵 정보에 기초하여 상기 현재 블록의 다중변환선택 정보를 획득하는 단계 및 상기 다중변환선택 정보에 기초하여 상기 현재 블록에 대한 역변환을 수행하는 단계를 포함하고, 상기 다중변환선택 정보는 가로 방향 변환타입 및 세로 방향 변환타입을 각각 설정하는데 사용될 수 있다.
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