液晶与显示2016，Vol.31Issue(6)：621-625,5.DOI:10.3788/YJYXS20163106.0621
基于Hough变换的瞳孔识别方法研究与实现
Research and implementation of pupil recognition based on Hough transform
摘要
Abstract
As traditional way for pupil recognition based on Hough transform circle detection has lower accuracy and speed,an improved method is proposed in this paper.After edge detection by Canny op-erator,Hough transform is performed in a limited radius.Within this range,finding the best fitting circle based on the circle equation in parameter space to get the center coordinates and radius,pupil recognition and center positioning are achieved ultimately.150 images are used to test the effects of pupil recognition under vc ++ 6.0 development platform.The experiments results show that the ac-curacy is 70.7% with an average speed of 1 s based on Hough transform which is used directly.In comparison the accuracy is 94% and the average speed is 0.45 s with the method proposed in this pa-per.It indicates that this method has a significant improvement on accuracy and speed.It can recog-nize the pupil and locate the center faster and has more accuracy.关键词
霍夫变换/圆的检测/瞳孔识别/中心点定位Key words
Hough transforme/circle detection/pupil recognition/center positioning分类
信息技术与安全科学引用本文复制引用
张宏薇,周必业,王仕洋,李宪龙,马海涛,崔继承,朱继伟,李鸣皋,高原,韩磊..基于Hough变换的瞳孔识别方法研究与实现[J].液晶与显示,2016,31(6):621-625,5.基金项目
国家重大科学仪器设备开发专项项目(No．2014YQ120351) （No．2014YQ120351）
