Chin Craig A, Barreto Armando
Department of Electrical and Computer Engineering, Florida International University Miami, FL 33174, USA.
Biomed Sci Instrum. 2007;43:152-7.
Electromyogram (EMG)-based and eye gaze tracking (EGT)-based hands-free cursor control input systems have been developed in the past as independent forms of cursor control. Each form of control possesses its own advantages and disadvantages in terms of usability. This paper presents a novel form of hands-free cursor control that integrates these two inputs in order to provide the user with the ability to manipulate the cursor more efficiently than the individual input systems operating in isolation. An experiment was conducted to compare the performance of this new EMG/EGT input system to EGT and mouse input systems in point-and-click trials. The results showed that while the EMG/EGT system was slower than the EGT system and the mouse, it produced a significantly smaller error rate than EGT input alone and therefore, EMG/EGT input could be considered to be a more usable form of hands-free cursor control when compared to EGT input.
过去已经开发出基于肌电图（EMG）和基于眼动追踪（EGT）的免提光标控制输入系统，作为独立的光标控制形式。每种控制形式在可用性方面都有其自身的优缺点。本文提出了一种新颖的免提光标控制形式，它将这两种输入方式集成在一起，以便为用户提供比单独运行的单个输入系统更有效地操纵光标的能力。进行了一项实验，以比较这种新的EMG/EGT输入系统与EGT和鼠标输入系统在点击试验中的性能。结果表明，虽然EMG/EGT系统比EGT系统和鼠标慢，但它产生的错误率明显低于单独的EGT输入，因此，与EGT输入相比，EMG/EGT输入可被认为是一种更可用的免提光标控制形式。
