Iris location method based on region growing and Hough transform
Biqing Zeng · Computer Engineering and Applications Journal · 2012
The key of iris recognition is locating iris quickly and accurately. Based on the analysis of the traditional iris localization al- gorithm, an iris location method which combines region growing and Hough transform is proposed. The inner boundary is searched by using region growing. A number of points at the outer boundary are sought based on the variation of gray. The location of outer bound- ary is found by the Hough transform. The results show that this algorithm is easy to realize, reduces the blindness of the search process, and improves the speed.