EP 4022904 A1 20220706 - METHOD AND APPARATUS FOR INTRA PREDICTION
Title (en)
METHOD AND APPARATUS FOR INTRA PREDICTION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR INTRAPRÄDIKTION
Title (fr)
PROCÉDÉ ET APPAREIL DE PRÉDICTION INTRA
Publication
Application
Priority
- RU 2019000653 W 20190920
- US 201962906714 P 20190926
- RU 2020050236 W 20200921
Abstract (en)
[origin: WO2021054868A1] A method of coding implemented by a decoding device or an encoding device is provided. The method includes: obtaining a predicted sample value from one or more reference sample values of the block; and obtaining a weighted predicted sample value by multiplying the predicted sample value with a sample weighting factor, wherein the sample weighting factor is equal to (64 − wL[ x ] − wT[ y ]) when an intra prediction mode of the block is horizontal or vertical intra prediction mode, wL[ x ] is a horizontal weighting factor, x = 0..nTbW − 1, a variable nTbW specifying the block width, wT[ y ] is a vertical weighting factor, y = 0..nTbH − 1, a variable nTbH specifying the block height. The method further includes: adding an additional value to the weighted predicted sample; and right shifting the sum according to a predetermined precision of the sample weighting factor to obtain an updated predicted sample value.
IPC 8 full level
H04N 19/11 (2014.01)
CPC (source: EP)
H04N 19/105 (2014.11); H04N 19/11 (2014.11); H04N 19/117 (2014.11); H04N 19/147 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/593 (2014.11); H04N 19/82 (2014.11); H04N 19/96 (2014.11)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021054868 A1 20210325; EP 4022904 A1 20220706; EP 4022904 A4 20230531
DOCDB simple family (application)
RU 2020050236 W 20200921; EP 20864489 A 20200921