A Lighting Control Method of Near-Infrared Light Sources for Robust Detection of Pupil and Corneal Reflection in Gaze Detection

Abstract

In our previous study, the automatic lighting power control method of the ring type of near-infrared LED light source for robust detection of the pupil in the difference image of the bright and dark pupil images was proposed for robust gaze detection. In the present study, we developed the light source having two LED rings for bright pupil image generation and the power control method of the source. They improved the robustness of corneal reflection detection especially.