US 11,991,389 B2
Method and apparatus for video encoding and decoding with optical flow based on boundary smoothed motion compensation
Franck Galpin, Thorigne-Fouillard (FR); Antoine Robert, Mézières sur Couesnon (FR); and Fabrice Leleannec, Betton (FR)
Assigned to InterDigital Madison Holdings, SAS, Paris (FR)
Appl. No. 17/603,644
Filed by InterDigital Madison Patent Holdings, SAS, Paris (FR)
PCT Filed Apr. 14, 2020, PCT No. PCT/US2020/028074
§ 371(c)(1), (2) Date Oct. 14, 2021,
PCT Pub. No. WO2020/214564, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 19305508 (EP), filed on Apr. 18, 2019.
Prior Publication US 2022/0201328 A1, Jun. 23, 2022
Int. Cl. H04N 19/583 (2014.01); H04N 19/105 (2014.01); H04N 19/137 (2014.01); H04N 19/159 (2014.01); H04N 19/167 (2014.01); H04N 19/176 (2014.01); H04N 19/182 (2014.01); H04N 19/55 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/583 (2014.11) [H04N 19/105 (2014.11); H04N 19/137 (2014.11); H04N 19/159 (2014.11); H04N 19/167 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/55 (2014.11); H04N 19/70 (2014.11)] 22 Claims
OG exemplary drawing
 
1. A method comprising for decoding a block of an image with inter-prediction refinement by:
accessing motion information for the block, motion information for the top neighboring block, and motion information for the left neighboring block;
obtaining new motion information for the block from a weighted sum of the motion information for the block, the motion information for the top neighboring block, and the motion information for the left neighboring block using motion information weighting factors; and
refining inter-prediction of the image block by applying an optical flow using the new motion information for the block.