【作者】 李姗； 潘纲； 李石坚；

【Author】 Li Shan, Pan Gang, Li Shijian School of Computer Science, Zhejiang University, Hangzhou 310027, China

【机构】 浙江大学计算机科学与技术学院；

【摘要】 本文以眼动为基本交互方式,建立了一个面向残障人士的眼动交互绘画系统。针对眼动交互的噪声问题和米达斯(Midas)接触问题,提出了基于时域约束的视点聚类算法,可从原始视点数据流中提取出注视点,判断用户当前的视点中心,据此可进一步判断用户眼睛行为;为消除视点抖动产生的噪声,给出了窗口长度自适应的视点信号平滑处理方法,实现了有效的自由绘画,可实现较为平稳的绘画轨迹。更多还原

【Abstract】 This paper describes an eye-controlled painting system which enables people with severe mobility impairments to draw by moving their eyes. We designed and implemented the system as well as proposed some algorithms to improve the performance of eye-tracking interaction. First, we present a time-domain constrained eye-tracking clustering algorithm to detecting fixations. Then, we figure out current eye movement behaviors. Last, we present a window-adaptive eye-tracking discrete Gauss filter algorithm, which can remove the noise of eye-movement data. The major achievement of the system is that the user can just use their eyes to draw, and they can choose to start and finish painting avoiding the "Midas Touch" problem as well as draw smoothly according to the eye tracking path.更多还原