Iris Location Algorithm Based on Gradient Direction Information
Zhiwen Wang, Shaozi Li, Guoqing Xie, Songzhi Su · 2009
The existing iris location algorithms are of low executing speed and poor robustness. In order to improve the accuracy of iris location, an iris location algorithm based on gradient direction information is proposed according to both the ring structural characteristics of iris and the gray distribution features of eye image in this paper. Experiments shows that the algorithm is effective and can improve the speed and accuracy of iris location.