| 一种非接触式实时视线追踪系统的设计 |
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| 引用本文： | 张鹏翼,王志良,迟健男,张闯.一种非接触式实时视线追踪系统的设计[J].北京科技大学学报,2009,31(5). |
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| 作者姓名： | 张鹏翼 王志良 迟健男 张闯 |
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| 作者单位： | 北京科技大学信息工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(No.60775042);;国家高技术研究发展计划资助项目(No.2007AA01Z160) |
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| 摘 要： | 为方便残疾人和老年人使用计算机进行信息交互,设计了一种非接触式低成本视线追踪系统.系统设计了一种双环形红外光源,通过交替照射用户脸部,用单CCD摄像机得到"亮瞳"和"暗瞳"的相邻两帧图像.将这两帧图像做差得到瞳孔的位置,使用椭圆拟合方式求得瞳孔中心,加之在"暗瞳"图像上得到的普洱钦斑中心,从而确定了局部视线的盯视方向.基于人类视线移动的特点,提出了使用神经网络和卡尔曼滤波相结合的方法进行瞳孔跟踪,最后给出了视线映射模型和校准方式.
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| 关 键 词： | 视线追踪 人机交互 瞳孔 普尔钦斑 |
Design of a real-time eye tracking system based on contactless configuration |
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| ZHANG Peng-yi,WANG Zhi-liang,CHI Jian-nan,ZHANG Chuang.Design of a real-time eye tracking system based on contactless configuration[J].Journal of University of Science and Technology Beijing,2009,31(5). |
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| Authors: | ZHANG Peng-yi WANG Zhi-liang CHI Jian-nan ZHANG Chuang |
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| Abstract: | In order to help the handicapped and the elderly use computer for information interacting,a low-cost and non-contact eye gaze tracking system is designed.This system is composed of two-loop illuminators and a CCD camera.The way of getting pupil position is to do subtraction of the two images,"bright pupil" and "dark pupil",which are gained by illuminating user's eyes alternate.The pupil center is localized by ellipse fitting,and the Purkinje image can be obtained in the "dark pupil" image,then the local gaz... |
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| Keywords: | eye gaze tracking human-computer interaction pupil Purkinje image |
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