Sight line direction estimation device, sight line direction estimation method, and sight line direction estimation program

Abstract

A sight line direction estimation device includes: an imaging unit that captures an image of a head portion including an eyeball of a person; an apparent sight line direction derivation unit that derives an apparent sight line direction connecting a center position of the eyeball and an apparent pupil center position on a surface of the eyeball corresponding to a pupil center position based on the image captured by the imaging unit; and a sight line direction estimation unit that estimates an actual sight line direction of the person based on a predetermined corresponding relationship between an actual sight line direction and the apparent sight line direction and the apparent sight line direction derived by the sight line direction derivation unit.

Dependencies are inferred from the claim text.