US 12,149,730 B2
Motion refinement and weighted prediction
Ruoyang Yu, Täby (SE); and Du Liu, Solna (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/438,037
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 5, 2020, PCT No. PCT/SE2020/050248
§ 371(c)(1), (2) Date Sep. 10, 2021,
PCT Pub. No. WO2020/185147, PCT Pub. Date Sep. 17, 2020.
Claims priority of provisional application 62/816,594, filed on Mar. 11, 2019.
Prior Publication US 2022/0150532 A1, May 12, 2022
Int. Cl. H04N 19/52 (2014.01); H04N 19/109 (2014.01); H04N 19/139 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01); H04N 19/527 (2014.01)
CPC H04N 19/52 (2014.11) [H04N 19/109 (2014.11); H04N 19/139 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/527 (2014.11)] 5 Claims
OG exemplary drawing
 
1. A method for determining a prediction block for decoding or encoding a current block in a current picture of a video stream, the method comprising:
obtaining a pair of initial motion vectors, the pair of initial motion vectors comprising a first initial motion vector and a second initial motion vector;
determining that a weighted prediction (WP) tool is not enabled;
determining that a bi-prediction with weighted averaging (BWA) tool is not enabled; and
refining the initial motion vectors as a result of determining that i) the WP tool is not enabled and ii) the BWA tool is also not enabled.