US 11,895,291 B2
Method and apparatus of video coding using bi-directional CU weight
Yu-Chi Su, Hsinchu (TW); Ching-Yeh Chen, Hsinchu (TW); Zhi-Yi Lin, Hsinchu (TW); and Tzu-Der Chuang, Hsinchu (TW)
Assigned to HFI INNOVATION INC., Zhubei (TW)
Appl. No. 17/056,111
Filed by MEDIATEK INC., Hsinchu (TW)
PCT Filed May 23, 2019, PCT No. PCT/CN2019/088069
§ 371(c)(1), (2) Date Nov. 17, 2020,
PCT Pub. No. WO2019/223746, PCT Pub. Date Nov. 28, 2019.
Claims priority of provisional application 62/743,014, filed on Oct. 9, 2018.
Claims priority of provisional application 62/742,476, filed on Oct. 8, 2018.
Claims priority of provisional application 62/719,826, filed on Aug. 20, 2018.
Claims priority of provisional application 62/675,239, filed on May 23, 2018.
Prior Publication US 2021/0211644 A1, Jul. 8, 2021
Int. Cl. H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/51 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/51 (2014.11)] 2 Claims
OG exemplary drawing
 
1. A method of video encoding or decoding for a coding system, wherein bi-directional CU (coding unit) weighting (BCW) is enabled for the coding system to allow using multiple pairs of weights, the method comprising:
receiving input data associated with a current block in a picture;
generating a Merge candidate list for the current block,
wherein when a target Merge candidate associated with current bi-directional CU weights for a bi-directional predictor of the current block in the Merge candidate list corresponds to a temporal candidate or a pair-wise candidate, the bi-directional CU weights are not inherited from weights of the temporal candidate and are set to a pre-defined pair of weights;
when the target Merge candidate associated with current bi-directional CU weights for a bi-directional predictor of the current block in the Merge candidate list corresponds to a spatial candidate, the bi-directional CU weights are inherited from weights of the spatial candidate; and
encoding or decoding the current block or a current motion information of the current block according to the Merge candidate list when Merge mode is selected for the current block.