US 12,267,484 B2
Warped reference list for warped motion video coding
Mohammed Golam Sarwer, San Jose, CA (US); Rachel Barker, Cambridge (GB); Jianle Chen, San Diego, CA (US); and Debargha Mukherjee, Cupertino, CA (US)
Assigned to GOOGLE LLC, Mountain View, CA (US)
Filed by GOOGLE LLC, Mountain View, CA (US)
Filed on Dec. 5, 2022, as Appl. No. 18/074,562.
Prior Publication US 2024/0187566 A1, Jun. 6, 2024
Int. Cl. H04N 19/46 (2014.01); H04N 19/105 (2014.01); H04N 19/176 (2014.01); H04N 19/182 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/46 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining a translational dynamic reference list for encoding a current block from a current frame from an input video;
obtaining a warped reference list for encoding the current block;
obtaining an output bitstream including:
an index value corresponding to optimal predicted warped model parameters from the warped reference list,
encoded block data obtained by encoding the current block using optimal warped model parameters, and
differential warped model parameters, wherein the differential warped model parameters indicate a difference between the optimal warped model parameters and the optimal predicted warped model parameters; and
outputting the output bitstream.