Development of a communication support device controlled by eye movements and voluntary eye blink
Development of a communication support device controlled by eye movements and voluntary eye blink
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DOI：
10.1093/ietisy/e89-d.6.1790
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发表时间：
2006-06-01
影响因子：
0.7
通讯作者：
Saitoh, Y
中科院分区：
文献类型：
--
作者：
Hori, J;Sakano, K;Saitoh, Y
一种由眼球运动和自愿眨眼控制的通信支持接口已经为不能说话的运动麻痹残疾人开发。水平和垂直眼电图的测量使用两个表面电极连接上方和旁边的优势眼，并参考耳垂电极和放大与AC耦合，以减少不必要的漂移。四个方向的光标移动-上，下，右，左-和一个选定的操作，实现了逻辑组合的两个检测到的通道信号的基础上特定于个人的阈值设置。字母输入实验在虚拟屏幕键盘上进行。通过最小化电极数量和对受试者和受试者进行培训，增强了该方法的可用性。设备.结果，使用我们的方法获得了90.1 +/- 3.6%的准确度和7.7 +/- 1.9个字母/分钟的处理速度。
A communication support interface controlled by eye movements and voluntary eye blink has been developed for disabled individuals with motor paralysis who cannot speak. Horizontal and vertical electro-oculograms were measured using two surface electrodes attached above and beside the dominant eye and referring to an earlobe electrode and amplified with AC-coupling in order to reduce the unnecessary drift. Four directional cursor movements -up, down, right, and left- and one selected operation were realized by logically combining the two detected channel signals based on threshold settings specific to the individual. Letter input experiments were conducted on a virtual screen keyboard. The method's usability was enhanced by minimizing the number of electrodes and applying training to both the subject and. the device. As a result, an accuracy of 90.1 +/- 3.6% and a processing speed of 7.7 +/- 1.9 letters/min. were obtained using our method.