GAZE TRACKING APPARATUS AND METHOD USING DIFFERENCE IMAGE ENTROPY

摘要

PURPOSE: A gaze tracking apparatus and method using difference image entropy is provided to control the various kinds of menu by using a computer, portable terminal, and camera mounted in the electronic device instead of a finger, voice, mouse by recognizing/tracing the pupil eye-gaze direction. CONSTITUTION: The gaze tracking apparatus using the difference image entropy(100) includes an image detection part, image selection part, and gaze tracker. The image detection part(120) detects the eye area image from the image taken by the camera(10). The image selection part(130) compares the eye area image with the reference images according to a plurality of eye positions and calculates the difference image entropy. The image selection part selects the reference image showing the smallest value of the difference image entropy. The gaze tracker(140) recognizes the eye-gaze direction of the pupil according to the selected reference image.