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1. WO2020115725 - VIDEO CODING USING MULTI-RESOLUTION REFERENCE PICTURE MANAGEMENT

Publication Number WO/2020/115725
Publication Date 11.06.2020
International Application No. PCT/IB2019/060579
International Filing Date 09.12.2019
IPC
H04N 19/33 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
30using hierarchical techniques, e.g. scalability
33in the spatial domain
H04N 19/423 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
42characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
423characterised by memory arrangements
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 19/132
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 19/172
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
172the region being a picture, frame or field
H04N 19/186
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
186the unit being a colour or a chrominance component
H04N 19/33
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
30using hierarchical techniques, e.g. scalability
33in the spatial domain
H04N 19/423
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
42characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
423characterised by memory arrangements
Applicants
  • BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • WANG, Xianglin
  • CHEN, Yi-Wen
  • ZHENG, Yunfei
  • WEN, Xing
  • CHEN, Yucong
  • HUANG, Yue
Priority Data
16/706,67506.12.2019US
62/776,99707.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) VIDEO CODING USING MULTI-RESOLUTION REFERENCE PICTURE MANAGEMENT
(FR) CODAGE VIDÉO UTILISANT UNE GESTION D'IMAGES DE RÉFÉRENCE À RÉSOLUTIONS MULTIPLES
Abstract
(EN)
Video coding methods and apparatuses are provided. A set of two or more pictures is coded. The set includes at least a first picture coded with a first spatial resolution, and a second picture coded with a second spatial resolution different from the first spatial resolution. The set of two or more pictures is stored in a decoded picture buffer based on corresponding spatial resolutions. The set of two or more pictures stored in the decoded picture buffer is used as a set of reference pictures for coding one or more successive pictures subsequent to the set of two or more pictures. The set of two or more pictures is incorporated into a reference picture list that contains pictures with at least two different spatial resolutions.
(FR)
L'invention concerne des procédés et des appareils de codage vidéo. Un ensemble d'au moins deux images est codé. L'ensemble comprend au moins une première image codée avec une première résolution spatiale et une seconde image codée avec une seconde résolution spatiale différente de la première. L'ensemble d'au moins deux images est stocké dans une mémoire tampon d'images décodées sur la base des résolutions spatiales correspondantes. L'ensemble d'au moins deux images stocké dans la mémoire tampon d'images décodées est utilisé à titre d'ensemble d'images de référence permettant de coder une ou plusieurs images successives postérieures à l'ensemble d'au moins deux images. L'ensemble d'au moins deux images est incorporé dans une liste d'images de référence qui contient des images ayant au moins deux résolutions spatiales différentes.
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