US 11,930,172 B2
Restrictions of usage of non-power-two-partition tree in video compression
Li Zhang, San Diego, CA (US); Kai Zhang, San Diego, CA (US); Hongbin Liu, Beijing (CN); and Yue Wang, Beijing (CN)
Assigned to BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, Beijing (CN); and BYTEDANCE INC., Los Angeles, CA (US)
Filed by Beijing Bytedance Network Technology Co., Ltd., Beijing (CN); and Bytedance Inc., Los Angeles, CA (US)
Filed on Aug. 13, 2021, as Appl. No. 17/401,447.
Application 17/401,447 is a continuation of application No. PCT/CN2020/075563, filed on Feb. 17, 2020.
Claims priority of application No. PCT/CN2019/075170 (WO), filed on Feb. 15, 2019.
Prior Publication US 2021/0377529 A1, Dec. 2, 2021
Int. Cl. H04N 19/119 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/119 (2014.11) [H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/96 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of video processing, comprising:
determining, for a conversion between a video and a bitstream of the video, whether a non-power-of-two tree (NPT-T) partition is enabled or disabled, wherein the NPT-T partition include splitting a first block of the video into multiple smaller-sized child blocks of the first block, and wherein a width (Wi) and/or a height (Hi) of at least one child block is a non-power-of-two integer;
determining a maximum block size, a minimum block size, a maximum bit depth, and/or a maximum depth that allows NPT-T partitions in response to determining that the NPT-T partition is enabled; and
performing the conversion based on determining that the NPT-T partition is enabled and determining that the maximum block size, the minimum block size, the maximum bit depth, and/or the maximum depth allows NPT-T partitions,
wherein the maximum block size, the minimum block size, and/or the maximum depth are derived to be identical to those for quarter-tree (QT) partitions.