US 12,407,817 B2
Intra prediction with geometric partition
Ya Chen, Cesson-Sevigne (FR); Gagan Bihari Rath, Cesson-Sevigne (FR); Karam Naser, Cesson-Sevigne (FR); and Antoine Robert, Cesson-Sevigne (FR)
Assigned to InterDigital CE Patent Holdings, SAS, Paris (FR)
Appl. No. 18/033,649
Filed by InterDigital CE Patent Holdings, SAS, Paris (FR)
PCT Filed Nov. 10, 2021, PCT No. PCT/EP2021/081266
§ 371(c)(1), (2) Date Apr. 25, 2023,
PCT Pub. No. WO2022/106281, PCT Pub. Date May 27, 2022.
Claims priority of application No. 20306397 (EP), filed on Nov. 18, 2020.
Prior Publication US 2024/0031560 A1, Jan. 25, 2024
Int. Cl. H04N 19/11 (2014.01); H04N 19/105 (2014.01); H04N 19/119 (2014.01); H04N 19/12 (2014.01); H04N 19/132 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01); H04N 19/61 (2014.01)
CPC H04N 19/11 (2014.11) [H04N 19/105 (2014.11); H04N 19/119 (2014.11); H04N 19/12 (2014.11); H04N 19/132 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/61 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for video decoding, comprising:
obtaining an intra prediction mode for a block of a picture;
determining a straight line based on said intra prediction mode for said block, wherein said straight line is set to be parallel to a direction associated with said intra prediction mode for said block;
splitting said block of said picture into at least two partitions by said straight line, said straight line being different than a horizontal line or a vertical line;
performing intra prediction with a first intra prediction mode to obtain prediction samples for a first partition of said at least two partitions, said first intra prediction mode corresponding to said intra prediction mode for said block;
performing intra prediction with a second intra prediction mode to obtain prediction samples for a second partition of said at least two partitions;
adjusting values of said prediction sample, of said first and second partitions, along said straight line using a blending process with adaptive weights; and
decoding said block based on said prediction samples of said first and second partitions.