US 12,244,795 B2
Device and method for intra-prediction
Alexey Konstantinovich Filippov, Moscow (RU); and Vasily Alexeevich Rufitskiy, Moscow (RU)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed by Huawei Technologies Co., Ltd., Guangdong (CN)
Filed on Dec. 16, 2022, as Appl. No. 18/067,599.
Application 18/067,599 is a continuation of application No. 17/247,859, filed on Dec. 28, 2020, granted, now 11,563,939.
Application 17/247,859 is a continuation of application No. PCT/RU2018/000432, filed on Jun. 29, 2018.
Prior Publication US 2023/0124833 A1, Apr. 20, 2023
Int. Cl. H04N 19/117 (2014.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/105 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for intra-predicting a non-square prediction block of a video image, the method comprising:
determining a directional intra-prediction mode from a set of directional intra-prediction modes, wherein each directional intra-prediction mode corresponds to a different intra-prediction angle, and the set of directional intra-prediction modes consists of extended directional intra-prediction modes only applied to non-square blocks;
determining, for a prediction sample of the non-square prediction block, a reference sample from a set of reference samples based on the directional intra-prediction mode;
determining whether to apply a filter to the determined reference sample based on the directional intra-prediction mode; and
outputting a bitstream to indicate the directional intra-prediction mode.