桌面式眼动跟踪系统研究

Eye Tracking Technology Research Based on Desktop

眼动跟踪技术作为一种新的人机交互方式,已受到越来越多人的关注,现有的眼动跟踪系统大都是头戴式的,它的硬件设备复杂,对人干扰较大,而且价格昂贵。文章实现了一个简单的基于桌面的眼动跟踪系统,本系统硬件构成简单,而且不与人直接接触,使用虹膜中心坐标来估计用户的注视点。实验表明,当误差距离不超过40个像素时,系统估计的人眼注视点准确率超过80%。

Human-Computer Interaction （HCI） has witnessed a tremendous growth in the past decade, as a new means of HCI, eye tracking technology has been more and more popular, some company have already released eye tracking system, but most of them are expensive, invasive and not user-friendly. This paper implements a simple eye tracking system based on the desktop, its hardware structure is simple, and no direct contact with people, uses the iris center coordinates to estimate the user＇s gaze. The experiments show that when the distance error is less than 40 pixels, the method used to calculate the human eye gaze has an accuracy of more than 80%.