US 12,192,624 B2
Image processing system and operating method thereof
Jae Hwan Jeon, Gyeonggi-do (KR); Tae Hyun Kim, Gyeonggi-do (KR); Chang Hun Cho, Gyeonggi-do (KR); and Chang Hee Pyeoun, Gyeonggi-do (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Jun. 6, 2022, as Appl. No. 17/833,472.
Claims priority of application No. 10-2022-0011454 (KR), filed on Jan. 26, 2022.
Prior Publication US 2023/0262328 A1, Aug. 17, 2023
Int. Cl. H04N 23/67 (2023.01); H04N 23/55 (2023.01)
CPC H04N 23/67 (2023.01) [H04N 23/55 (2023.01)] 18 Claims
OG exemplary drawing
 
1. An image sensor, comprising:
a lens configured to receive light;
a preliminary operation performer configured to generate position correction information based on a difference between first pixel values, the first pixel values corresponding to pixels of a first micro-lens, for the light of a first image received through the lens; and
a lens position controller configured to change a position of the lens for a second image on the basis of the position correction information,
wherein the preliminary operation performer detects an in-focus position corresponding to the position of the lens where the first pixel values for the first image have a same value, and a correction position corresponding to the position of the lens with the largest difference between the first pixel values for the first image.