US 12,425,623 B2
AMVP-merge mode with SBTMVP
Lien-Fei Chen, Hsinchu (TW); Xin Zhao, San Jose, CA (US); Roman Chernyak, Palo Alto, CA (US); Xiaozhong Xu, State College, PA (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 Jan. 8, 2024, as Appl. No. 18/406,411.
Claims priority of provisional application 63/437,986, filed on Jan. 9, 2023.
Prior Publication US 2024/0236350 A1, Jul. 11, 2024
Int. Cl. H04N 19/44 (2014.01); H04N 19/105 (2014.01); H04N 19/137 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/105 (2014.11); H04N 19/137 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of video decoding, comprising:
receiving a coded video bitstream comprising coded information of a current block in a current picture, the coded information being indicative of an advanced motion vector prediction-merge (AMVP-merge) mode, the AMVP-merge mode using a bi-directional predictor comprising an AMVP predictor in a first direction and a merge predictor in a second direction that is different from the first direction;
constructing an AMVP candidate list that includes a plurality of AMVP candidates for the AMVP predictor;
constructing a merge candidate list that includes a plurality of merge candidates for the merge predictor, the merge candidate list comprising at least a subblock-based temporal motion vector prediction (SbTMVP) candidate;
selecting the AMVP predictor from the AMVP candidate list;
selecting the merge predictor from the merge candidate list with the SbTMVP candidate; and
reconstructing the current block in the AMVP-merge mode according to a combination of a first prediction according to the AMVP predictor in the first direction and a second prediction according to the merge predictor selected from the merge candidate list with the SbTMVP candidate in the second direction.