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基于单相机双光源的视线估计 被引量：6

Eye-gaze tracking based on one camera and two light sources
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摘要 提出一种角膜反射和虹膜中心估计算法相结合的视线估计方法,使用单相机、双辅助光源构建了头部可自由运动的视线估计系统。在准确提取两个反射光斑位置和虹膜中心坐标的基础上,以多项式函数的形式建立视线特征向量与测试屏上注视点坐标之间的映射关系。实验结果表明,系统在水平方向上视线估计的平均误差为0.91°,在垂直方向上平均误差为1.1°,达到了良好的视线估计效果。 In this paper,we propose an eye-gaze tracking method based on the corneal reflections and iris center estimation.We use one camera and two light sources to alleviate the restriction on the user＇s head movement.After the corneal reflections and the iris center have been precisely located,we use polynomial function to describe the mapping relationship between the feature vector and the coordinate of gazing point on the test board.Our experiment shows that the average error of the implemented system is approximately 0.91° in horizontal direction and 1.1° in vertical direction.The performance of our algorithm proves the validity of the proposed eye-gaze tracking system.
作者 张太宁 白晋军 孟春宁 常胜江
机构地区 南开大学现代光学研究所 天津工业大学电子与信息工程学院
出处 《光电子．激光》 EI CAS CSCD 北大核心 2012年第10期1990-1995,共6页 Journal of Optoelectronics·Laser
基金 国家自然科学基金(61171027) 教育部博士点基金(20090031110033)资助项目
关键词 视线估计 角膜反射 虹膜中心 多项式函数 eye-gaze tracking corneal reflection iris center polynomial function
分类号 TP391.4 [自动化与计算机技术—计算机应用技术]
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参考文献20

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共引文献4

同被引文献51

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引证文献6

二级引证文献15

光电子．激光
2012年 第10期

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