Research on Pupil Center Location Based on Improved Hough Transform and Edge Gradient Algorithm

作     者：Dewu Chen School of Information Science & Engineering Lanzhou University Lanzhou,China Junnan Bai School of Information Science & Engineering Lanzhou University Lanzhou,China Zhiyi Qu School of Information Science & Engineering Lanzhou University Lanzhou,China 

会议名称：《2012 National Conference on Information Technology and Computer Science》

会议日期：2012年

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

关 键 词：pupil detection center position Hough transform the edge gradient 

摘      要：According to the poor efficiency of the traditional Hough transform algorithm to detect the pupil center,this paper proposed an edge gradient algorithm,which combines with improved Hough transform algorithm to detect the pupil *** the beginning,a modified Hough transform algorithm was used to detect the pupil center,if more than one circle was found,the edge gradient algorithm was used to remove the excess *** results show that our proposed method can not only improve the efficiency of pupil center location but also achieve better accuracy.