US 12,149,734 B2
Generalized bi-prediction for video coding with reduced coding complexity
Yan Zhang, San Diego, CA (US); Xiaoyu Xiu, San Diego, CA (US); Yuwen He, San Diego, CA (US); and Yan Ye, San Diego, CA (US)
Assigned to INTERDIGITAL VC HOLDINGS, INC., Wilmington, DE (US)
Filed by Vid Scale, Inc., Wilmington, DE (US)
Filed on Oct. 18, 2021, as Appl. No. 17/504,150.
Application 17/504,150 is a continuation of application No. 16/964,144, granted, now 11,153,602, previously published as PCT/US2019/014691, filed on Jan. 23, 2019.
Claims priority of provisional application 62/621,524, filed on Jan. 24, 2018.
Prior Publication US 2022/0038738 A1, Feb. 3, 2022
Int. Cl. H04N 19/577 (2014.01); H04N 19/176 (2014.01); H04N 19/31 (2014.01); H04N 19/573 (2014.01)
CPC H04N 19/577 (2014.11) [H04N 19/176 (2014.11); H04N 19/31 (2014.11); H04N 19/573 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A video decoding method comprising:
for a current block, obtaining a first temporal distance to a first reference picture and a second temporal distance to a second reference picture;
selecting at least a first weight value from among a plurality of weights in a first predetermined set of weights, the first predetermined set of weights being selected based at least in part on a comparison of the first temporal distance and the second temporal distance; and
predicting the current block as a weighted sum of a first reference block in the first reference picture and a second reference block in the second reference picture, wherein the first reference block is weighted by the first weight and the second reference block is weighted by a second weight.