US 12,244,846 B2
Methods and systems for performing gradual decoding refresh processing on pictures
Jie Chen, Beijing (CN); Ru-Ling Liao, Beijing (CN); Yan Ye, San Diego, CA (US); and Jiancong Luo, Skillman, NJ (US)
Assigned to Alibaba Group Holding Limited, Grand Cayman (KY)
Filed by ALIBABA GROUP HOLDING LIMITED, Grand Cayman (KY)
Filed on Sep. 11, 2023, as Appl. No. 18/464,681.
Application 18/464,681 is a continuation of application No. 17/108,534, filed on Dec. 1, 2020, granted, now 11,758,171.
Claims priority of provisional application 62/954,011, filed on Dec. 27, 2019.
Prior Publication US 2023/0421795 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/46 (2014.01); H04N 19/107 (2014.01); H04N 19/117 (2014.01); H04N 19/119 (2014.01); H04N 19/172 (2014.01); H04N 19/70 (2014.01); H04N 19/82 (2014.01)
CPC H04N 19/46 (2014.11) [H04N 19/107 (2014.11); H04N 19/117 (2014.11); H04N 19/119 (2014.11); H04N 19/172 (2014.11); H04N 19/70 (2014.11); H04N 19/82 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A method for encoding a video sequence, comprising:
receiving a video sequence;
encoding a first flag indicating whether gradual decoding refresh (GDR) is enabled or disabled in the video sequence, and a second flag indicating whether a picture in the video sequence is a GDR picture or not, wherein
when the first flag indicates that the GDR is enabled the video sequence, the second flag has a first value indicating the picture in the video sequence is a GDR picture or has a second value indicating the picture in the video sequence is not a GDR picture; and
when the first flag indicates that the GDR is disabled in the video sequence, the second flag has the second value indicating the picture in the video sequence is not the GDR picture.