US 12,238,346 B2
Condition-dependent unsymmetrical quad-tree partitioning
Kai Zhang, San Diego, CA (US); Li Zhang, San Diego, CA (US); Hongbin Liu, Beijing (CN); Jizheng Xu, San Diego, CA (US); 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 Jul. 29, 2021, as Appl. No. 17/389,157.
Application 17/389,157 is a continuation of application No. PCT/CN2020/074216, filed on Feb. 3, 2020.
Claims priority of application No. PCT/CN2019/074701 (WO), filed on Feb. 3, 2019; application No. PCT/CN2019/077620 (WO), filed on Mar. 11, 2019; application No. PCT/CN2019/090163 (WO), filed on Jun. 5, 2019; and application No. PCT/CN2019/101594 (WO), filed on Aug. 20, 2019.
Prior Publication US 2021/0360243 A1, Nov. 18, 2021
Int. Cl. H04N 19/96 (2014.01); H04N 19/119 (2014.01); H04N 19/12 (2014.01); H04N 19/122 (2014.01); H04N 19/13 (2014.01); H04N 19/132 (2014.01); H04N 19/136 (2014.01); H04N 19/157 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01); H04N 19/184 (2014.01); H04N 19/186 (2014.01); H04N 19/46 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/96 (2014.11) [H04N 19/119 (2014.11); H04N 19/12 (2014.11); H04N 19/122 (2014.11); H04N 19/13 (2014.11); H04N 19/132 (2014.11); H04N 19/136 (2014.11); H04N 19/157 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/184 (2014.11); H04N 19/186 (2014.11); H04N 19/46 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for processing video, comprising:
determining characteristics regarding a current video block;
determining an operational state regarding unsymmetrical quad-tree (UQT) splitting based on determining the characteristics, wherein the operational state indicates at least one of: whether the UQT splitting is enabled or disabled, or how to split the current video block into four partitions using the UQT splitting; and
performing a conversion between the current video block and a bitstream of the current video block based on the operational state of the UQT splitting,
wherein the characteristics include at least one of: information regarding color format, or color components of the current video block;
wherein the UQT splitting is disabled for the current video block when a width W or a height H of the current video block satisfies a first set of conditions, where W and H are integers, and the UQT splitting is enabled for the current video block when the width W or the height H of the current video block satisfies a second set of conditions,
wherein the first set of conditions includes at least one of:
W≥T1 and H≥T2, where T1 represents a first threshold, T2 represents a second threshold, and T1 and T2 are integers;
W≥T1 or H≥T2;
W≤T1 and H≤T2;
W≤T1 or H≤T2;
W×H≤T, where T represents a third threshold, and T is an integer; or
W×H≥T,
or
wherein the second set of conditions includes at least one of:
W≥T1 and H≥T2;
W≥T1 or H≥T2;
W≤T1 and H≤T2;
W≤T1 or H≤T2;
W×H≤T; or
W×H≥T; and
wherein at least one of the first threshold, the second threshold, or the third threshold depends on picture or slice types.