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1. WO2020108572 - INDEPENDENT CONSTRUCTION METHOD FOR BLOCK VECTOR LIST IN INTRA BLOCK COPY MODE

Publication Number WO/2020/108572
Publication Date 04.06.2020
International Application No. PCT/CN2019/121643
International Filing Date 28.11.2019
IPC
H04N 19/56 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
56Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
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
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 19/167
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
167Position within a video image, e.g. region of interest [ROI]
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 19/563
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
563Motion estimation with padding, i.e. with filling of non-object values in an arbitrarily shaped picture block or region for estimation purposes
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
H04N 19/96
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-H04N19/85, e.g. fractals
96Tree coding, e.g. quad-tree coding
Applicants
  • BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD. [CN]/[CN]
  • BYTEDANCE INC. [US]/[US]
Inventors
  • XU, Jizheng
  • ZHANG, Kai
  • ZHANG, Li
  • LIU, Hongbin
  • WANG, Yue
Agents
  • LIU, SHEN & ASSOCIATES
Priority Data
PCT/CN2018/11783128.11.2018CN
PCT/CN2018/12295322.12.2018CN
PCT/CN2018/12540329.12.2018CN
PCT/CN2019/07014902.01.2019CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INDEPENDENT CONSTRUCTION METHOD FOR BLOCK VECTOR LIST IN INTRA BLOCK COPY MODE
(FR) PROCÉDÉ D'ÉTABLISSEMENT INDÉPENDANT D’UNE LISTE DE VECTEURS DE BLOCS DANS UN MODE DE COPIE INTRA-BLOC
Abstract
(EN)
The application relates to an independent construction method for block vector list in intra block copy mode. A method of video processing is disclosed. The method of video processing includes: determining, during a first conversion between a first video block of a video and a bitstream representation of the video, a first candidate list construction method for the first video block with a first coding mode; performing, at least based on a first candidate list acquired according to the first candidate list construction method, the first conversion; wherein the conversion of the first video block is based on samples in current picture, and the first candidate list construction method is different from a second candidate list construction method which is applied, during a second conversion between a second video block with a second coding mode of the video and the bitstream representation of the video, on the second video block.
(FR)
La présente invention concerne un procédé d’établissement indépendant d’une liste de vecteurs de blocs dans un mode de copie intra-bloc. L'invention concerne également un procédé de traitement vidéo. Le procédé de traitement vidéo comprend les étapes suivantes : déterminer, pendant une première conversion entre un premier bloc vidéo d'une vidéo et une représentation de flux binaire de la vidéo, un premier procédé d’établissement d’une liste de candidats pour le premier bloc vidéo avec un premier mode de codage ; effectuer, au moins sur la base d'une première liste de candidats acquise selon le premier procédé d’établissement de la liste de candidats, la première conversion ; la conversion du premier bloc vidéo étant fondée sur des échantillons dans une image actuelle, et le premier procédé d’établissement de la liste de candidats étant différent d'un second procédé d’établissement d’une liste de candidats qui est appliqué, durant une seconde conversion entre un second bloc vidéo avec un second mode de codage de la vidéo et la représentation de flux binaire de la vidéo, sur le second bloc vidéo.
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