US 12,243,234 B2
Information processing system, eye state measurement system, information processing method, and non-transitory computer readable medium
Shoji Yachida, Tokyo (JP); Michiaki Inoue, Tokyo (JP); and Tomohiro Sueishi, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP); and THE UNIVERSITY OF TOKYO, Tokyo (JP)
Appl. No. 18/032,686
Filed by NEC CORPORATION, Tokyo (JP); and THE UNIVERSITY OF TOKYO, Tokyo (JP)
PCT Filed Aug. 11, 2021, PCT No. PCT/JP2021/029657
§ 371(c)(1), (2) Date Apr. 19, 2023,
PCT Pub. No. WO2022/085276, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 2020-176066 (JP), filed on Oct. 20, 2020.
Prior Publication US 2023/0386038 A1, Nov. 30, 2023
Int. Cl. H04N 23/695 (2023.01); A61B 3/11 (2006.01); A61B 3/113 (2006.01); G06T 7/00 (2017.01); G06T 7/20 (2017.01); G06T 7/66 (2017.01); G06T 7/70 (2017.01); H04N 23/90 (2023.01)
CPC G06T 7/0016 (2013.01) [A61B 3/112 (2013.01); A61B 3/113 (2013.01); G06T 7/20 (2013.01); G06T 7/66 (2017.01); G06T 7/70 (2017.01); H04N 23/695 (2023.01); H04N 23/90 (2023.01); G06T 2207/30041 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An information processing system comprising:
at least one memory storing instructions, and
at least one processor configured to execute the instructions to:
acquire, from first photodetector, image data relating to a first image of a head of a subject, the first image being captured at a first angle of view;
acquire, from second photodetector, image data relating to a second image of an eye region of the subject, the second image being captured at a second angle of view narrower than the first angle of view;
move a visual field range of the second photodetector, based on position information relating to the head of the subject, the position information being acquired based on the first image; and
evaluate a change in state of an eye of the subject, based on chronological data relating to the second image,
wherein the at least one processor is configured to execute the instructions to acquire image data relating to the first image at a frame rate equal to or greater than a frame rate at which the at least one processor is configured to execute the instructions to acquire image data relating to the second image,
wherein the frame rate of the first photodetector is 120 fps to 1,200 fps and
wherein the frame rate of the second photodetector is 120 fps to 1,000 fps.