Abstract
In recent years, the computer spreads, and its users also go on increasing. However, everyone cannot handle it easily. The computer must be user-friendly and become what can be used intuitively. Then, the "gaze interface" which makes it possible to operate the computer only by watching the screen has been developed. Although the accuracy of gaze measurement has been improving recently, it is still unsuitable for use as a human-machine interface for the reason that the equipments are large-scale, and that the setting is very difficult. It will become practical if gaze tracking will start automatically by detecting the user in front of the display with one camera. We aim at development of a human-machine interface which makes automatic detection of the existence of people by detecting the movement of human blinking, and starts a calibration automatically, and measures gaze points in real-time.