US 12,132,907 B2
Directions for wide angle intra prediction
Gagan Rath, Bhubaneswar (IN); Fabien Racape, San Francisco, CA (US); and Fabrice Urban, Cesson-Sevigne (FR)
Assigned to InterDigital Madison Patent Holdings, SAS, Paris (FR)
Appl. No. 17/280,473
Filed by InterDigital Madison Patent Holdings, SAS, Paris (FR)
PCT Filed Sep. 25, 2019, PCT No. PCT/US2019/052863
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/072249, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 18290110 (EP), filed on Oct. 1, 2018.
Prior Publication US 2022/0046244 A1, Feb. 10, 2022
Int. Cl. H04N 19/132 (2014.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/105 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 21 Claims
OG exemplary drawing
 
1. A method, comprising:
predicting, based on a prediction mode, a sample of a rectangular video block using at least one sample of a reference array associated with the rectangular video block,
wherein the rectangular video block has a number of wide angles that is determined based on an aspect ratio of the rectangular video block,
wherein at least a starting prediction direction or an ending prediction direction, associated with the prediction mode, is aligned along a secondary diagonal of the rectangular video block, and
wherein a length of the reference array is twice the length of a corresponding side of the rectangular video block; and,
encoding the rectangular video block using the predicted sample in an intra coding mode.