Iris Location Algorithm Based on Mathematical Morphology
Yingbiao Jia · Microelectronics & Computer · 2009
Edge detection of iris image is the key step of iris location that used Hough transform and edge detection. An iris location method based on mathematical morphology operator is proposed in the paper. Morphological edge detection operator of binary image is used for inner boundary. The outer boundary and eyelid contour are obtained by a multi-scale edge detection method, using label of regional connectivity to further remove the random noise and obtain an ideal image edge, which greatly reduce the Hough transform search time compared to the classic method of iris location. The experiment shows that the algorithm has better performance of noise reduction, which has certain application value.