Study on Man-Machine Interface for the Aid of Handicapped People Using Automatic Eye-Tracking Technique

利用自动眼动追踪技术辅助残疾人的人机界面研究

基本信息

批准号：
09558037
负责人：
MAEDA Junji
金额：
$ 8.19万
依托单位：
Muroran Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09558037/
关键词：
man-machine interface eye-tracking system aid for the handicapped

项目摘要

The purpose of this research is to investigate the development of a man-machine interface system for the aid of handicapped people by using an automatic eye-tracking technique.Firstly we have developed an interface system that connects the eye-tracking system with the computer. The digital signal from the eye-tracking system that is composed of the motion and the distance of eye movements of the subject toward the horizontal and vertical directions is transferred to the computer. Then, the signal is processed in order to superimpose the movements of the eye of the subject as the movements of the cursor on the computer display. It took long time to develop a software that handle the signal because we have scarcely no references. We have successfully achieved to control the movements of the cursor on monitor that is synchronized with the movements of the eye of the subject. However, we have not developed the click of the cursor by using the consciously successive blinks of the eye of the subjectWe have recognized the importance of the calibration and the effect of shifting the head of the subject through the experiments. At the beginning of the experiment, the calibration has to be made that controls the gain of the signal from the eye-tracking system in order to fit the extent of the eye-movements into the area of the cursor-movements on the monitor. Since the head-shift of the subject produces the shift of the position of the cursor, the area the cursor can move will deviate from the standard position on the monitor. As a result, the whole system is strongly affected by the head-shift of the subject.

本研究的目的是研究利用自动眼动追踪技术开发帮助残疾人的人机界面系统。首先，我们开发了一种将眼动追踪系统与计算机连接的界面系统。来自眼动追踪系统的数字信号（由受试者在水平和垂直方向上的运动和眼球运动距离组成）被传输到计算机。然后，对信号进行处理，以便将受试者眼睛的运动叠加为计算机显示器上光标的运动。由于我们几乎没有参考资料，所以花了很长时间来开发处理信号的软件。我们已经成功地控制了显示器上光标的移动，使其与受试者眼睛的移动同步。然而，我们还没有通过使用受试者有意识的连续眨眼来开发光标的点击，我们通过实验认识到了校准的重要性以及移动受试者头部的效果。在实验开始时，必须进行校准来控制来自眼睛跟踪系统的信号增益，以使眼睛运动的范围适合显示器上光标运动的区域。由于被摄体的头部移动会导致光标位置的移动，因此光标可以移动的区域将偏离监视器上的标准位置。结果，整个系统受到主体头部移动的强烈影响。