PROBLEM TO BE SOLVED: To provide a visual line detection device that can correctly detect a visual line direction as for various subjects.SOLUTION: A visual line detection device comprises: a light source that irradiates an eyeball of a subject with detection light a location detection unit that detects a location of a pupil center indicative of a center of a pupil of left/right respective eyeballs and a location of a cornea reflection center indicative of a center of a cornea reflection from an image of the eyeball irradiated with the detection light a curvature-of-radius calculation unit that calculates a curvature of radius of the cornea of left/right respective eyeballs from a location of the light source and the location of the cornea reflection center a visual line detection unit that detects a visual line direction of the left/right respective eyeballs from the location of the pupil center and the curvature of radius of the cornea a view point detection unit that detects a view point of the left/right respective eyeballs from the visual line direction detected by the visual line detection unit an output control unit that causes a view point of the left/right respective eyeballs to be displayed on a display unit from the visual line direction detected by the visual line detection unit and a determination unit that determines whether or not the left/right respective eyeballs direct at a target direction from the visual line direction detected by the visual line detection unit.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT
