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1. WO2020117628 - METHOD AND DEVICE FOR PICTURE ENCODING AND DECODING

Publication Number WO/2020/117628
Publication Date 11.06.2020
International Application No. PCT/US2019/063913
International Filing Date 02.12.2019
IPC
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 19/70 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 19/119 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
H04N 19/122 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
12Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform and sub-band transform or selection between H.263 and H.264
122Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
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
Applicants
  • INTERDIGITAL VC HOLDINGS, INC. [US]/[US]
Inventors
  • NASER, Karam
  • LELEANNEC, Fabrice
  • POIRIER, Tangi
Agents
  • DORINI, Brian J.
  • SHEDD, Robert D.
Priority Data
18306603.403.12.2018EP
18306619.005.12.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND DEVICE FOR PICTURE ENCODING AND DECODING
(FR) PROCÉDÉ ET DISPOSITIF DE CODAGE ET DE DÉCODAGE D'IMAGE
Abstract
(EN)
A decoding method is presented. a type of split of a block into transform units is first decoded. A transform is then determined for each transform unit of said block responsive to said type of split. Finally, decoded transform coefficients of said transform units are inverse transformed using the determined transforms.
(FR)
L'invention concerne un procédé de décodage. Un type de division d'un bloc en unités de transformation est d'abord décodé. Une transformée est ensuite déterminée pour chaque unité de transformation dudit bloc en réponse audit type de division. Enfin, des coefficients de transformée décodés desdites unités de transformation sont soumis à une transformation inverse à l'aide des transformées déterminées.
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