US 11,671,589 B2
Decoder side intra mode derivation for most probable mode list construction in video coding
Jingya Li, Munich (DE); Vadim Seregin, San Diego, CA (US); and Marta Karczewicz, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Oct. 15, 2021, as Appl. No. 17/502,875.
Claims priority of provisional application 63/129,004, filed on Dec. 22, 2020.
Prior Publication US 2022/0201281 A1, Jun. 23, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/132 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/159 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/132 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11)] 24 Claims
OG exemplary drawing
 
1. A method of decoding video data, the method comprising:
deriving, for a current block of video data and using decoder side intra mode derivation (DIMD), a list of intra modes using reconstructed samples of neighboring blocks;
constructing, for the current block, a most probable mode (MPM) list, wherein constructing the MPM list comprises inserting, into the MPM list, at least one intra mode from the derived list of intra modes, and wherein inserting the at least one intra mode from the derived list of intra modes into the MPM list comprises:
inserting, into the MPM list, a first candidate from the list of intra modes derived using DIMD; and
selectively inserting, in to the MPM list, a second candidate from the list of intra modes derived using DIMD; and
predicting, using a candidate selected from the constructed MPM list, the current block.