A person's gaze can provide the information where a person is looking at and what he/she is paying attention to. In the following demo, we show the possibility to control the computer cursor using the eye gaze.
Real time eye gaze tracking We divide the screen into 4*4 grids. We use the eye gaze to control the curosr to move among these grids. A main movement is that the cursor is moved from the top-left corner to the bottom-right corner of the screen row by row.
Eye tracking demos
Real time multi-module eye tracking 1 This demo shows robustness of eye tracker after we combine the conventional kalman filter based bright pupil tracker with the recent mean shift eye tracker. This technology can robustly track the eyes under different face orientations, external strong illuminations and closed eyes.
Real time face pose tracking 3 This demo shows robustness of our face pose tracker to detect and track face. At the same time, we do the real time face pose estimation to tell the person's face orientation. We divide the face pose into 4 types: left, right, front, up.
Real time face pose tracking 4 This demo shows robustness of our face pose tracker to detect and track face of different person. At the same time, we do the real time face pose estimation to tell the person's face orientation. We divide the face pose into 4 types: left, right, front, up.
Eyelid movement parameters tracking demos
Eyelid movement is one of the visual behaviors refect a person's level of fatigue. There are several ocular measures to characterize eyelid movement such as eye blink frequency, eye closure duration, eye closure speed. We compute two eyelid movement parameters: PERCLOS and AECS in real time and output the two parameters to computer screen. If PERCLOS and AECS measures both exceed their respective thresholds, we issue a warning alarm. PERCLOS measures percentage of eye closure over time, exclunding the time spent on normal closure. AECS is the average eye closure speed, which means the amount of time needed to fully close the eyes and to fully open the eyes. The eye closure speed is distinctively different for a drowsy and alert subject.
Real time eyelid movement parameters display 1 In the screen, the upper one is the parameter of AECS and the lower one is the PERCLOS. The demo shows that when the person closes his eyes slowly, the AECS indicator will go up; When the person closes his eyes quickly, the AECS indicator will go down. If the person closes his eyes for a while, the PERCLOS indicator will go up; If the person opens his eyes for a while, the PERCLOS indicator will go down again.
Real time eyelid movement parameters display 2 In the screen, the upper one is the parameter of AECS and the lower one is the PERCLOS. The demo shows that when the person closes his eyes slowly, the AECS indicator will go up; When the person closes his eyes quickly, the AECS indicator will go down. If the person closes his eyes for a while, the PERCLOS indicator will go up; If the person opens his eyes for a while, the PERCLOS indicator will go down again.