A real-time eye detection system based on the active IR illumination

Non-intrusive real-time eye detection is widely used in vision-based man-machine interaction. These methods based on IR illumination have little sensitivity to lighting condition change and complicated background environments. In this paper, we present the realization of eye detection system based on active IR illumination. The inner and outer rings of IR LEDs illuminated the eyes and generated two kinds of pupil images: bright and dark pupil images. The IR LEDs were controlled by the even/odd video signal information. It was easy to get the eye position by difference the image of bright and dark pupil images. Experimental results using real images demonstrated the accuracy and robustness of the proposed solution.