US 12,278,980 B2
Palette based coding with local dual tree coding structure
Xiaozhong Xu, State College, PA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Nov. 27, 2023, as Appl. No. 18/519,558.
Application 18/519,558 is a continuation of application No. 17/472,528, filed on Sep. 10, 2021.
Application 17/472,528 is a continuation of application No. 17/097,415, filed on Nov. 13, 2020, granted, now 11,184,632, issued on Nov. 23, 2021.
Claims priority of provisional application 62/963,216, filed on Jan. 20, 2020.
Prior Publication US 2024/0089485 A1, Mar. 14, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/50 (2014.01); H04N 19/103 (2014.01); H04N 19/176 (2014.01); H04N 19/184 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/50 (2014.11) [H04N 19/103 (2014.11); H04N 19/176 (2014.11); H04N 19/184 (2014.11); H04N 19/186 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing visual media data, the method comprising:
processing a bitstream that includes the visual media data according to a format rule,
wherein the bitstream includes a coded block and prediction information indicating whether the block is under a local dual tree structure,
wherein the format rule specifies that whether to allow a palette based coding mode for the block is determined based on a comparison of a size of the block with a threshold, and
wherein the coded block is coded based on the determination of whether to allow the palette based coding mode for the block and the indication of whether the block is under the local dual tree structure.