1996 年 116 巻 9 号 p. 1029-1034
Recently, the method which apply eye motion to human interface has become more popular studies. Generally, we are perceiving the outside by the five senses. Most part of the perception is depending on the sense of sight. If the eye motion can be detected and applied to human interface, we can not only make use to communicate to old and handicapped persons but also apply to study and medical treatment. Thus, we constructed the system using image processing that detects the gaze-point from relation between the eye rotation center and the iris center. The iris center is the center of approximate ellipse that is calculated by two iris edge points and ellipse's long and short radiuses in image, and the eye rotation center is the eyeball center that is approximated to a sphere. The line from eye rotation center to iris center is gaze-line, and the point of intersection to the screen and the gaze-line is gaze-point. In this paper, we describe a detection method of the gaze-point and the gaze-point input system that using wink.
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