US 12,278,967 B2
Method and device for picture encoding and decoding using illumination compensation
Philippe Bordes, Laille (FR); Fabrice Leleannec, Mouazé (FR); Tangi Poirier, Thorigné-Fouillard (FR); and Fabrice Urban, Thorigné-Fouillard (FR)
Assigned to InterDigital Madison Patent Holdings, SAS, Paris (FR)
Filed by InterDigital Madison Patent Holdings, SAS, Paris (FR)
Filed on Jan. 25, 2024, as Appl. No. 18/423,249.
Application 18/423,249 is a continuation of application No. 17/429,077, granted, now 11,936,871, previously published as PCT/US2020/016345, filed on Feb. 3, 2020.
Claims priority of application No. 19305149 (EP), filed on Feb. 8, 2019; and application No. 19305584 (EP), filed on May 7, 2019.
Prior Publication US 2024/0179318 A1, May 30, 2024
Int. Cl. H04N 19/132 (2014.01); H04N 19/105 (2014.01); H04N 19/176 (2014.01); H04N 19/196 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/105 (2014.11); H04N 19/176 (2014.11); H04N 19/196 (2014.11)] 22 Claims
OG exemplary drawing
 
18. An encoding apparatus comprising one or more processors and at least one memory coupled to the one or more processors, wherein the one or more processors are configured to perform:
identifying valid and non-valid samples among neighboring reconstructed samples on a left of a current block and among neighboring reconstructed samples on top of the current block;
replacing at least one non-valid sample by another valid sample such that a number of valid samples on the left of the current block and a number of valid samples on the top the current block are both larger than or equal to N;
determining local illumination compensation parameters from a first set of N valid samples on the left of the current block and a second set of N valid samples on the top of the current block and their corresponding reference samples neighboring a reference block; and
encoding the current block from a prediction block obtained by applying local illumination compensation with the local illumination compensation parameters on the reference block.