US 11,744,457 B2
Method for measuring anomalies of refraction using a reflection image of pupil in visible light
Dong Hui Lim, Seoul (KR); Young Jun Kim, Busan (KR); and Jae Hyeong Chun, Jeollabuk-do (KR)
Assigned to SAMSUNG LIFE PUBLIC WELFARE FOUNDATION, Seoul (KR)
Filed by SAMSUNG LIFE PUBLIC WELFARE FOUNDATION, Seoul (KR)
Filed on Dec. 29, 2020, as Appl. No. 17/136,174.
Claims priority of application No. 10-2020-0021273 (KR), filed on Feb. 20, 2020.
Prior Publication US 2021/0259542 A1, Aug. 26, 2021
Int. Cl. G06T 11/60 (2006.01); A61B 3/103 (2006.01); A61B 3/14 (2006.01); A61B 5/00 (2006.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01); G06V 10/44 (2022.01)
CPC A61B 3/103 (2013.01) [A61B 3/14 (2013.01); A61B 5/7267 (2013.01); G06T 11/60 (2013.01); G06V 10/454 (2022.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01)] 5 Claims
OG exemplary drawing
 
1. A method of measuring a refractive error using a reflection image of a pupil for a visible ray, the method comprising:
obtaining an image by projecting a visible ray, using a flash, onto a retina of a subject and capturing, using a smartphone camera, a shape and location of the image reflected in the pupil of the subject;
applying the image to a residual neural network (ResNet) model trained using data of an ImageNet based on clinical information into which result values of a refractive error of the subjects have been incorporated; and
outputting the refractive error of the image and a measurement factor measured to determine the refractive error based on the shape and the location reflected in the pupil in a process of deriving the refractive error of the image.