US 12,457,325 B2
On planar intra prediction mode
Xinwei Li, Beijing (CN); Ru-Ling Liao, Beijing (CN); Jie Chen, Beijing (CN); and Yan Ye, San Diego, CA (US)
Assigned to Alibaba (China) Co., Ltd., Hangzhou (CN)
Filed by Alibaba (China) Co., Ltd., Hangzhou (CN)
Filed on Jun. 30, 2023, as Appl. No. 18/217,429.
Claims priority of provisional application 63/358,208, filed on Jul. 4, 2022.
Prior Publication US 2024/0007640 A1, Jan. 4, 2024
Int. Cl. H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/593 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/593 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
predicting a current block using a planar mode, wherein:
the planar mode comprises: a planar horizontal mode, a planar vertical mode, or a planar average mode; and
the planar mode is determined for the current block based at least in part on a comparison involving a ratio between a sum of absolute values of vertical gradients associated with the current block and a sum of absolute values of horizontal gradients associated with the current block, and at least one of a first predefined threshold or a second predefined threshold.