US 12,457,327 B2
Sub-block based intra block copy
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 Dec. 2, 2021, as Appl. No. 17/541,038.
Application 17/541,038 is a continuation of application No. PCT/CN2020/094863, filed on Jun. 8, 2020.
Claims priority of application No. PCT/CN2019/090409 (WO), filed on Jun. 6, 2019.
Prior Publication US 2022/0094927 A1, Mar. 24, 2022
Int. Cl. H04N 19/107 (2014.01); H04N 19/105 (2014.01); H04N 19/117 (2014.01); H04N 19/119 (2014.01); H04N 19/139 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/593 (2014.01)
CPC H04N 19/107 (2014.11) [H04N 19/105 (2014.11); H04N 19/117 (2014.11); H04N 19/119 (2014.11); H04N 19/139 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/593 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A method of processing video data, comprising:
determining, for a conversion between a current block of a video and a bitstream of the video, that the current block is split into multiple sub-blocks, wherein at least one of the multiple sub-blocks is coded using a modified intra-block copy (IBC) coding technique that uses reference samples from one or more video regions from a current picture of the current block; and
performing the conversion based on the determining,
wherein a size of at least one of the multiple sub-blocks is determined based on a size of a minimum coding unit, a minimum unit for motion information storage, a minimum prediction unit or a minimum transform unit, and
wherein a size of at least one of the multiple sub-blocks is based on a color format or a color component of the video.