US 11,876,978 B2
Intra prediction mode information propagation for geometric partition mode with IBC and intra prediction
Lien-Fei Chen, Hsinchu (TW); Xiang Li, Saratoga, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by Tencent America LLC, Palo Alto, CA (US)
Filed on Aug. 29, 2022, as Appl. No. 17/898,447.
Claims priority of provisional application 63/239,221, filed on Aug. 31, 2021.
Prior Publication US 2023/0073917 A1, Mar. 9, 2023
Int. Cl. H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/593 (2014.01); H04N 19/119 (2014.01); H04N 19/172 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/119 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/593 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of video decoding performed in a video decoder, the method comprising:
receiving coded information of a current block in a current picture of a video from a coded video bitstream, the coded information indicating that the current block is partitioned into at least a first partition and a second partition based on a geometric partition mode (GPM), wherein the first partition is associated with an intra block copy (IBC) prediction mode, and wherein the second partition is associated with an intra prediction mode; and
storing prediction mode information for a first subblock of a plurality of subblocks of the current block, the prediction mode information including one of a DC mode, a Planar mode, and an intra prediction mode based on whether the first subblock is associated with one of the IBC prediction mode, the intra prediction mode, and both the IBC prediction mode and the intra prediction mode.