US 11,968,360 B2
Methods for palette prediction
Ru-Ling Liao, Beijing (CN); Mohammed Golam Sarwer, Cupertino, CA (US); Yan Ye, San Diego, CA (US); and Xuan Huang, Beijing (CN)
Assigned to Alibaba Group Holding Limited, Grand Cayman (KY)
Filed by ALIBABA GROUP HOLDING LIMITED, Grand Cayman (KY)
Filed on Mar. 31, 2021, as Appl. No. 17/218,655.
Claims priority of provisional application 63/005,305, filed on Apr. 4, 2020.
Claims priority of provisional application 63/002,594, filed on Mar. 31, 2020.
Prior Publication US 2021/0306627 A1, Sep. 30, 2021
Int. Cl. H04N 19/117 (2014.01); H04N 19/105 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/46 (2014.01); H04N 19/80 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/105 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/46 (2014.11); H04N 19/80 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A video data processing method, comprising:
receiving a video frame for processing;
generating one or more coding units of the video frame; and
processing the one or more coding units using one or more palette predictors having palette entries,
wherein each palette entry of the one or more palette predictors has a corresponding reuse flag, and
wherein a number of reuse flags for each palette predictor is set to a fixed number for a corresponding coding unit, wherein the fixed number of reuse flags is set to 31 or 63 based on a slice type and a dual tree mode setting.