A New Iris Location Alogrithm
Bin Li · Journal of Hunan Industry Polytechnic · 2006
Owing to the limitation of the existing iris location algorithm,a new iris location algorithm using geometric symmetry feature and detection from gray scale image is presented.First,the Canny detector is used to extract iris edge.Then,geometric features of circle are used for estimating the edge of iris.Finally,circular edge template is used to locate precisely iris's edge.Experiment shows this method can overcome the difficulties of the existing iris location algorithm likely to encounter if required to deal with images that contain broader regions of surrounding face,and improve the rate of precise and velocity.