Easy-setup eye movement recording system for human-computer interaction
This addresses the need for more natural and convenient HCI applications by providing a free-head, easy-setup system, though it appears incremental as it builds on existing eye-tracking methods with specific hardware improvements.
The paper tackled the problem of creating a non-intrusive eye-tracking system for human-computer interaction by developing a setup that uses a visual DSP camera to detect eye features without requiring users to wear anything, achieving a sampling rate of 300 Hz and an accuracy of about 1.8 degree/s.
Tracking the movement of human eyes is expected to yield natural and convenient applications based on human-computer interaction (HCI). To implement an effective eye-tracking system, eye movements must be recorded without placing any restriction on the user's behavior or user discomfort. This paper describes an eye movement recording system that offers free-head, simple configuration. It does not require the user to wear anything on her head, and she can move her head freely. Instead of using a computer, the system uses a visual digital signal processor (DSP) camera to detect the position of eye corner, the center of pupil and then calculate the eye movement. Evaluation tests show that the sampling rate of the system can be 300 Hz and the accuracy is about 1.8 degree/s.