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电子学报  2013 

一种可克服头动影响的视线跟踪系统

DOI: 10.3969/j.issn.0372-2112.2013.12.013, PP. 2403-2408

Keywords: 视线跟踪,头部运动,瞳孔,瞳孔角膜反射向量

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Abstract:

本文提出一种基于单目摄像头和四红外光源的视线跟踪系统.通过四个红外光源在眼睛角膜上产生的四个光斑的中心与瞳孔中心建立新型的瞳孔角膜反射向量,该向量对头部运动具有较好的鲁棒性;此外通过设定感兴趣区域提高人眼定位速度,利用模板匹配与凸包方法精确定位瞳孔中心,并采用点匹配法正确识别光斑中心,确保了视线跟踪的实时性和精度.实验结果证明该系统较好地解决了视线跟踪精度不高和头部运动受限的问题,并且满足实时性要求.

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