Patent ID: 11887349
Assignee: NEC CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 4:
5. A non-transitory computer readable medium storing a program causing a computer to execute:
acquiring image data obtained by capturing at least eyes of a target person, and by capturing an object, the image data comprising at least one image;
specifying the object in a line-of-sight direction of the target person using the image data;
calculating luminance in the object using the image data;
calculating illuminance in the eyes of the target person from color information of a sclera, which is a white eye area of the eyes, of the target person in the image data; and
calculating an incident light amount representing an amount of light incident on the eyes of the target person using the image data, based on the luminance in the object and the illuminance in the eyes of the target person;
determining a reference pupil size based on the incident light amount;
calculating a pupil size of the target person using the image data; and
determining an interest of the target person in the object by comparing the reference pupil size with the pupil size.