Detecting a gazing region by visual direction and stereo cameras

We develop a wearable vision system that consists of a user´s visual direction sensor and stereo cameras. First, we establish a method for calibrating the system so that it can detect user´s blink points even in a real situation such that the depth of blink points changes. Next, we propose a method for detecting a gazing region of a user in terms of the planar convex polygon. In our method, the system first identifies the fixation point of a user, and then applies a stereo algorithm and robust statistics to detect his gazing region. The system can detect the gazing region of the user and provide him with its 3D position.