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1. WO2020139169 - METHOD AND APPARATUS OF SHARPENING INTERPOLATION FILTERING FOR PREDICTIVE CODING

Publication Number WO/2020/139169
Publication Date 02.07.2020
International Application No. PCT/RU2019/050250
International Filing Date 20.12.2019
IPC
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 19/122 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
CPC
H04N 19/523
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
523with sub-pixel accuracy
H04N 19/80
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
80Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
Applicants
  • HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
  • FILIPPOV, Alexey Konstantinovich [RU]/[CN] (RU)
Inventors
  • FILIPPOV, Alexey Konstantinovich
  • RUFITSKIY, Vasily Alexeevich
  • CHEN, Jianle
Agents
  • LAW FIRM "GORODISSKY & PARTNERS" LTD.
Priority Data
62/786,31128.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS OF SHARPENING INTERPOLATION FILTERING FOR PREDICTIVE CODING
(FR) PROCÉDÉ ET APPAREIL DE FILTRAGE D'INTERPOLATION D'ACCENTUATION POUR LE CODAGE PRÉDICTIF
Abstract
(EN)
The present disclosure relates to intra- or inter-prediction for video encoding and decoding. For that purpose, an apparatus and methods obtain a reference sample and obtain a fractional sample position p. A subpixel interpolation filter is used to filter the reference sample to obtain a predicted sample value. The filter coefficients of the subpixel interpolation filter satisfy a linear combination of and a filter strength parameter S.
(FR)
La présente invention concerne l'intra-prédiction ou l'inter-prédiction pour le codage et le décodage vidéo. À cet effet, un appareil et des procédés obtiennent un échantillon de référence et obtiennent une position d'échantillon fractionnaire p. Un filtre d'interpolation de sous-pixel est utilisé pour filtrer l'échantillon de référence pour obtenir une valeur d'échantillon prédite. Les coefficients de filtre du filtre d'interpolation de sous-pixel satisfont une combinaison linéaire de et un paramètre de force de filtre S.
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