A Robust Gaze Tracking Method for Users Wearing Glasses

Vision-based gaze trackers that utilize corneal reflections of IR lights are vulnerable to users wearing glasses. IR reflection on eye glasses overlap with pupil region to interfere gaze estimation. This overlap problem should be resolved properly when the moving region of user is relatively large. In this paper, we propose a solution to handle the overlapping problem in gaze tracking for users wearing glasses. One of the two IR sources will be turned off when it becomes a problematic glint on the glasses. We propose a model that calculates gaze point with the remaining single glint. The proposed method was implemented on our state-of-the-art gaze tracker. The tracked results showed that our proposed model with the remaining glint preserved the accuracy of the system.