Eye movement measurement device, eye movement measurement method, and eye movement measurement program

An eye movement measurement method comprising:

• acquiring an eye image in which an image of an eye of a subject is captured;
• extracting feature points in a white region of the eye included in the eye image acquired in the acquiring an eye image;
• generating, for each of the feature points extracted in the extracting feature points, a template candidate region, the template candidate region being a region including a pixel of each of the feature points, in the eye image;
• selecting, as a template region, the template candidate region including more of the feature points among a plurality of the template candidate regions generated in the generating a template candidate region;
• and
• measuring a three-dimensional eye movement including at least a rotation angle of the eye of the subject by tracking movement in the eye image acquired in the acquiring an eye image by using the template region selected in the selecting the template candidate region.

A non-transitory computer readable meeting holding an eye movement measurement program for causing a computer to perform:

• acquiring an eye image in which an image of an eye of a subject is captured;
• extracting feature points in a white region of the eye included in the eye image acquired in the acquiring an eye image;
• generating, for each of the feature points extracted in the extracting feature points, a template candidate region, the template candidate region being a region including a pixel of each of the feature points, in the eye image;
• selecting, as a template region, the template candidate region including more of the feature points among a plurality of the template candidate regions generated in the generating a template candidate region;
• and
• measuring a three-dimensional eye movement including at least a rotation angle of the eye of the subject by tracking movement in the eye image acquired in the acquiring an eye image by using the template region selected in the selecting the template candidate region.