Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020139005 - IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

Publication Number WO/2020/139005
Publication Date 02.07.2020
International Application No. PCT/KR2019/018575
International Filing Date 27.12.2019
IPC
H04N 19/11 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
11among a plurality of spatial predictive coding modes
H04N 19/91 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85103
91Entropy coding, e.g. variable length coding or arithmetic coding
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 19/593 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
593involving spatial prediction techniques
H04N 19/109 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
109among a plurality of temporal predictive coding modes
CPC
H04N 19/109
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
109among a plurality of temporal predictive coding modes
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 19/13
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
13Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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 19/51
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
Applicants
  • 한국전자통신연구원 ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE [KR]/[KR]
  • 한국항공대학교산학협력단 INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY [KR]/[KR]
  • 세종대학교 산학협력단 INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY [KR]/[KR]
Inventors
  • 이진호 LEE, Jin Ho
  • 강정원 KANG, Jung Won
  • 이하현 LEE, Ha Hyun
  • 임성창 LIM, Sung Chang
  • 김휘용 KIM, Hui Yong
  • 김재곤 KIM, Jae Gon
  • 박도현 PARK, Do Hyeon
  • 이영렬 LEE, Yung Lyul
Agents
  • 성병기 SUNG, Byung Kee
Priority Data
10-2018-017211328.12.2018KR
10-2019-002571106.03.2019KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED
(FR) PROCÉDÉ ET DISPOSITIF DE CODAGE/DÉCODAGE D'IMAGE, ET SUPPORT D'ENREGISTREMENT SUR LEQUEL UN FLUX BINAIRE EST STOCKÉ
(KO) 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체
Abstract
(EN)
An image decoding method is disclosed in the present specification. The image decoding method of the present invention comprises the steps of: acquiring, from a bitstream, prediction information and residual signal information about a current block; and restoring the current block on the basis of the acquired prediction information and the acquired residual signal information, wherein the prediction information is acquired through entropy decoding, and a context model to be used for the entropy decoding of the prediction information is determined on the basis of a prediction mode of a neighboring block of the current block.
(FR)
La présente invention concerne un procédé de décodage d'image. Le procédé de décodage d'image de la présente invention comprend les étapes consistant : à acquérir, d'un flux binaire, des informations de prédiction et des informations de signal résiduel concernant un bloc actuel ; et à restaurer le bloc courant sur la base des informations de prédiction acquises et des informations de signal résiduel acquises, les informations de prédiction étant acquises par décodage entropique, et un modèle de contexte à utiliser pour le décodage entropique des informations de prédiction étant déterminé sur la base d'un mode de prédiction d'un bloc voisin du bloc actuel.
(KO)
본 명세서에서는 영상 복호화 방법이 개시된다. 본 발명의 영상 복호화 방법은, 비트스트림으로부터 현재 블록에 대한 예측 정보 및 잔차 신호 정보를 획득하는 단계 및 상기 획득한 예측 정보 및 상기 획득한 잔차 신호 정보에 기초하여 상기 현재 블록을 복원하는 단계를 포함하되, 상기 예측 정보는 엔트로피 복호화를 통해 획득되고, 상기 예측 정보의 엔트로피 복호화에 이용되는 문맥 모델은 상기 현재 블록의 주변 블록의 예측 모드에 기초하여 결정되는 것을 특징으로 할 수 있다.
Also published as
Latest bibliographic data on file with the International Bureau