Evaluation of a Head-Mouse Combined with Gyro- and Opto-sensors
Soo‐Chan Kim, Min-Je Park · 한국정보기술학회논문지 · 2011
We proposed a new mouse as an input device for a computer. The operation of this mouse is based on measurements of rotations of the user’s head and detection of eye blinks. The mouse positions were estimated using gyro sensors that can measure the angular velocity of head rotations, and mouse events such as clicks/double clicks were detected using opto-sensors that can detect blinking of the eyes. We could eliminate the need to perform the cumbersome task of periodically removing the accumulated error. We facilitated intuitive control of the mouse by using a relative coordinates system with dead zones. As a result, we could control a mouse pointer and detect mouse events. We compared the performance of the proposed mouse with that of a general computer mouse and to that of alternative mouses such as Quick Glance, in which eye movements are used for control, and Camera Mouse, in which face movements are used for control. In experiments involving clicking a box 20 times, text-entry using the Dasher interface, and text-entry using an on-screen keyboard, the performance of the proposed mouse was superior to that of other mouses except the general mouse. Especially, in comparison with the Quick Glance mouse, it showed excellent performance about 21%, 25% and 37%, respectively.