Active Eye-tracking System Using Frequency Image Processing Method

〈Summary〉 A new active eye-tracking system has been developed using the frequency image processing method in order to improve the effects of the central coordination of eyes when investigated under various lighting conditions. In this paper, we have proposed the use of quad PTZ cameras to track the face and eye; further, we use image compensation with the frequency image processing method, which can compute the central position of the eye and face detection improvements under low illumination levels. In all the tasks, the frequency image processing method was able to separate the pupil and the white of the eye, and further, feature detection under various light environments was also improved. The user’s gaze points are calculated on the basis of the position of the eyes and face and calibrated by cognitive calibration methods. Our system provides better usability for the user who can now operate the system without any restrictions. The eye-tracking system is capable of calculating eye gaze in real-time to provide a responsive interaction.