US 12,244,826 B2
Video block partition based on quinary-tree
Li Zhang, San Diego, CA (US); Kai 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 Aug. 10, 2021, as Appl. No. 17/398,857.
Application 17/398,857 is a continuation of application No. PCT/CN2020/074745, filed on Feb. 11, 2020.
Claims priority of application No. PCT/CN2019/074762 (WO), filed on Feb. 11, 2019; and application No. PCT/CN2019/077161 (WO), filed on Mar. 6, 2019.
Prior Publication US 2021/0377528 A1, Dec. 2, 2021
Int. Cl. H04N 19/70 (2014.01); H04N 19/119 (2014.01); H04N 19/157 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01); H04N 19/66 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/176 (2014.11) [H04N 19/119 (2014.11); H04N 19/157 (2014.11); H04N 19/174 (2014.11); H04N 19/66 (2014.11); H04N 19/96 (2014.11)] 16 Claims
OG exemplary drawing
 
1. A method of processing video data, wherein the method is performed by a video processing apparatus, and the method comprises:
determining, for a current video block of a video, a partition mode in which the current video block is split into M portions; and
performing a conversion between the current video block and a bitstream based on the partition mode;
wherein the current video block, before being split into the M portions, is split from a parent block by one or more kinds of split methods, and the current video block has a size W×H, and an i-th portion Mi of the M portions has a size Wi×Hi, W, H, Wi and Hi being integers, an index i=0 to M−1,
wherein a specific partition tree is not allowed to be applied to at least one of the M portions in a case where the current video block is split in a specific partition pattern, and the specific partition tree comprises at least one of vertical binary tree (BT), vertical ternary tree (TT), horizontal BT, horizontal TT, and quadtree (QT), and
wherein M is equal to 5, and the current video block is split into five portions in both vertical and horizontal directions using Quinary-Tree (QUI-T):
W0+W1+W2=W3+W4=W,
H0=H1=H2, H3=H4,
H0+H3=H; or
W1=W2,
W0+W1=W3+W4=W,
H0=H1+H2,
H3=H4,
H0+H3=H; or
W0+W1+W2+W4=W,
W2=W3,
H0=H1=H2+H3=H4=H.