US 12,395,676 B2
Intra-prediction apparatus for extending a set of predetermined directional intra-prediction modes
Alexey Konstantinovich Filippov, Moscow (RU); and Vasily Alexeevich Rufitskiy, Moscow (RU)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on May 20, 2022, as Appl. No. 17/750,099.
Application 17/750,099 is a continuation of application No. 17/097,942, filed on Nov. 13, 2020, granted, now 11,343,537.
Application 17/097,942 is a continuation of application No. 16/448,476, filed on Jun. 21, 2019, granted, now 10,863,197, issued on Dec. 8, 2020.
Application 16/448,476 is a continuation of application No. PCT/RU2016/000916, filed on Dec. 23, 2016.
Prior Publication US 2022/0279208 A1, Sep. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/11 (2014.01); H04N 19/157 (2014.01); H04N 19/176 (2014.01); H04N 19/182 (2014.01); H04N 19/593 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/593 (2014.11) [H04N 19/11 (2014.11); H04N 19/157 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/70 (2014.11)] 17 Claims
OG exemplary drawing
 
1. An intra prediction method for a rectangular video coding block, wherein the method is applied to an intra prediction apparatus and the method comprises:
parsing a bitstream to obtain a predetermined directional intra-prediction mode, the predetermined directional intra-prediction modes being associated with a predetermined direction within a predetermined directional range;
determining a width and a height of the rectangular video coding block as a coding unit (CU);
determining an aspect ratio of the rectangular video coding block based on the width and the height in luma samples, wherein the rectangular video coding block includes a non-square luma coding block;
determining an extension directional luma intra-prediction mode based on the aspect ratio of the rectangular video coding block and the predetermined directional intra-prediction mode; and
intra-predicting pixel values of luma pixels of the rectangular video coding block based on the extension directional luma intra-prediction mode.