VISUAL AXIS DETECTING APPARATUS, VISUAL AXIS DETECTING METHOD, AND VISUAL AXIS DETECTING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a visual axis detecting apparatus, visual axis detecting method, and visual axis detecting program capable of accurately detecting visual axis directions of various subjects.SOLUTION: The visual axis detecting apparatus can determine effectiveness of a visual axis direction detected by a gaze point detection part 216 using a position difference as a calibration value when detecting a position of a cornea curvature center so as to easily and effectively determine the effectiveness of the visual axis direction without separately using equipment or the like for detecting the effectiveness of the visual axis direction. This configuration can accurately detect visual axis directions of various subjects, for example, subjects whose cornea curvature radii of left/right eyeballs are significantly different from each other and subjects whose visual axis directions of the left/right eyeballs are significantly different due to influence such as the strabismus.SELECTED DRAWING: Figure 4