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中文摘要：
提出了一种利用圆形角点定位瞳孔的算法。该算法主要在定位到人眼区域的基础上,利用改进的SU-SAN算法寻找圆形角点;然后根据梯度放缩计算角点向量的梯度值,最后通过筛选函数输出瞳孔中心位置及亮瞳面积,准确地定位到瞳孔,并根据亮瞳的大小定位到瞳孔区域中心。实验结果表明本算法是准确可靠的。
英文摘要：
This paper proposed an algorithm of pupil detection by using circle-corner point. This algorithm was on the basis of getting the rough eye region,and used the improved SUSAN algorithm to find circle-corner point,and then computed the gradient value of candidate pupil points according to magnifing and narrowing of gradient. Finally,output the center of pupil and the area of bright pupil by selection function,which could not only locate pupil points ,but also locate the center of pupils’ area depending on the size of bright pupil. Emperimental results show that this algorithm is accurate and robust.
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