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1. WO2020112768 - REFERENCE SAMPLE FILTER SELECTION IN INTRA PREDICTION

Publication Number WO/2020/112768
Publication Date 04.06.2020
International Application No. PCT/US2019/063246
International Filing Date 26.11.2019
IPC
H04N 19/159 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
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 19/117 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
117Filters, e.g. for pre-processing or post-processing
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
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 19/117
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
117Filters, e.g. for pre-processing or post-processing
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 19/14
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
14Coding unit complexity, e.g. amount of activity or edge presence estimation
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
Applicants
  • TENCENT AMERICA LLC [US]/[US]
Inventors
  • XU, Xiaozhong
  • LIU, Shan
  • LI, Yiming
Agents
  • RABENA, John F.
  • BIRD, John M.
  • EMERY, David P.
Priority Data
16/688,32819.11.2019US
62/772,07127.11.2018US
62/778,66612.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REFERENCE SAMPLE FILTER SELECTION IN INTRA PREDICTION
(FR) SÉLECTION DE FILTRE D'ÉCHANTILLON DE RÉFÉRENCE DANS UNE PRÉDICTION INTRA
Abstract
(EN)
A method of controlling intra prediction for decoding or encoding of a video sequence, is by at least one processor and includes identifying whether an intra prediction mode of a current block has a wide angle direction, based on the intra prediction mode being identified to have the wide angle direction, filtering reference samples of the current block, using an edge-smoothing filter, and based on the intra prediction mode being identified to not have the wide angle direction, filtering the reference samples, using an edge-preserve filter.
(FR)
L'invention concerne un procédé de commande de prédiction intra pour le décodage ou le codage d'une séquence vidéo, par au moins un processeur et consistant à identifier si un mode de prédiction intra d'un bloc actuel a une direction d'angle large, sur la base du mode de prédiction intra qui est identifié pour avoir la direction d'angle large, filtrer des échantillons de référence du bloc courant, à l'aide d'un filtre de lissage de bord, et sur la base du mode de prédiction intra qui est identifié comme n'ayant pas la direction d'angle large, filtrer les échantillons de référence, à l'aide d'un filtre de préservation de bord.
Also published as
Latest bibliographic data on file with the International Bureau