US 12,294,739 B2
Updating for counter-based intra prediction mode
Junru Li, Hong Kong (CN); Meng Wang, Hong Kong (CN); Li Zhang, San Diego, CA (US); Kai Zhang, San Diego, CA (US); Hongbin Liu, Beijing (CN); Yue Wang, Beijing (CN); and Shiqi Wang, Hong Kong (CN)
Assigned to Beijing Bytedance Network Technology Co., Ltd., Beijing (CN); Bytedance Inc., Los Angeles, CA (US); and Bytedance (HK) Limited, Hong Kong (CN)
Filed by Beijing Bytedance Network Technology Co., Ltd., Beijing (CN); Bytedance Inc., Los Angeles, CA (US); and Bytedance (HK) Limited, Hong Kong (CN)
Filed on Feb. 22, 2022, as Appl. No. 17/651,975.
Application 17/651,975 is a continuation of application No. PCT/CN2020/109971, filed on Aug. 19, 2020.
Prior Publication US 2022/0182667 A1, Jun. 9, 2022
Int. Cl. H04N 19/82 (2014.01); H04N 19/105 (2014.01); H04N 19/132 (2014.01); H04N 19/159 (2014.01); H04N 19/167 (2014.01); H04N 19/169 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/593 (2014.01)
CPC H04N 19/593 (2014.11) [H04N 19/105 (2014.11); H04N 19/132 (2014.11); H04N 19/159 (2014.11); H04N 19/167 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/1883 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing video data, comprising:
determining, for a conversion between a current video block of a video and a bitstream of the video, that a first prediction mode is applied to derive prediction samples of the current video block,
maintaining, a frequency table recording frequencies associated with one or more intra prediction modes, and
performing the conversion based on the first prediction mode,
wherein the frequencies indicate occurrences associated with the one or more intra prediction modes applied for one or more video blocks processed before the current video block,
wherein in a case that the first prediction mode is an intra prediction mode of the one or more intra prediction modes, the frequency table is updated based on a first intra prediction mode, and
wherein in response to the first prediction mode being not one intra prediction mode among the one or more intra prediction modes, the frequency table is disallowed from being updated.