US 11,991,363 B2
Matrix-based intra prediction using upsampling
Zhipin Deng, Beijing (CN); Kai Zhang, San Diego, CA (US); Li Zhang, San Diego, CA (US); Hongbin Liu, Beijing (CN); and Jizheng Xu, San Diego, CA (US)
Assigned to BYTEDANCE INC., Los Angeles, CA (US); and BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., Beijing (CN)
Filed by Beijing Bytedance Network Technology Co., Ltd., Beijing (CN); and Bytedance Inc., Los Angeles, CA (US)
Filed on Dec. 1, 2022, as Appl. No. 18/073,191.
Application 18/073,191 is a continuation of application No. 17/479,360, filed on Sep. 20, 2021, granted, now 11,659,185.
Application 17/479,360 is a continuation of application No. PCT/CN2020/091542, filed on May 21, 2020.
Claims priority of application No. PCT/CN2019/087987 (WO), filed on May 22, 2019.
Prior Publication US 2023/0132613 A1, May 4, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/132 (2014.01); G06F 7/78 (2006.01); G06F 17/16 (2006.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/132 (2014.11) [G06F 7/78 (2013.01); G06F 17/16 (2013.01); H04N 19/105 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of video processing, comprising:
determining, for a conversion between a video block of a video and a bitstream of the video, that a first intra mode is applied on the video block of the video, wherein the first intra mode includes a matrix vector multiplication operation and followed by an upsampling operation to generate prediction samples for the video block; and
performing the conversion based on the prediction samples;
wherein the upsampling operation comprises a horizontal upsampling operation and a vertical upsampling operation, and the horizontal upsampling operation and the vertical upsampling operation are performed in a fixed order, and
wherein the horizontal upsampling operation is performed before the vertical upsampling operation.