Gaze point detection system allowing head motion
✍ Scribed by Muneo Iida; Akira Tomono
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 564 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0882-1666
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✦ Synopsis
Abstract
Since human eye movement easily follows one's intention, it is possible to use this to instruct a computer through a display screen, e.g., selection of a menu and control of a cursor. This paper proposes a method to detect a gaze point on a display screen independently of the movement of an operator's head. The method uses an eye tracker based on the limbus boundary method and a three‐dimensional (3‐D) magnetic sensor which determines the position of an operator's head in a fixed coordinate. Experiments show that position‐detection errors are about 1°, and this is enough for this application. To overcome an effect caused by a small involuntary movement of eyes around a target, a mouse is used at the same time. Experimental comparison between the proposed method (with a mouse) and a conventional operation (a mouse alone) shows that the former is faster when a target is relatively separated from the center, i.e., the method is effective.