Patent ID: 9262680
Filing Date: 2016-02-16
CPC Classification: A61B,G06F,G06K,G06T

Claim Text:
1. A point-of-gaze detection device to detect a point-of-gaze of a subject toward a surrounding environment, comprising: an eyeball image obtaining section configured to obtain an eyeball image of the subject; a reflection point estimating section configured to estimate a first reflection point, at which incoming light in an optical axis direction of an eyeball of the subject is reflected, from the eyeball image; a corrected reflection point calculating section configured to calculate a corrected reflection point as a corrected first reflection point by correcting the first reflection point on the basis of a personal parameter indicative of a difference between a gaze direction of the subject and the optical axis direction of the eyeball; and a point-of-gaze detecting section configured to detect the point-of-gaze on the basis of light at the corrected reflection point and light in the surrounding environment.