Title :
An Improved Iris Localization Method for Authentication System
Author :
Zhang, Zongqiang ; Li, Mingchu ; Xia, Feng ; Ma, Jianhua
Author_Institution :
Sch. of Software Technol., Dalian Univ. of Technol., Dalian, China
Abstract :
At present, the research of biometric recognition is gave more and more attentions. The iris recognition is a kind of biometrics technologies. Based on Daugman´ and Wilds´ iris localization algorithms, the paper is to present an improved iris localization method named two-phase approximation localization for authentication system. Firstly, we evaluate the image quality and abandon blurred pictures. And we estimate the center and radius of iris boundaries. After that, the method calculates the center and radius for the second time using vote method. The average time of localization reaches 2.0 seconds and 99.70% at accuracy. The method is much faster than Daugman´s and Wilds´ classical methods.
Keywords :
approximation theory; iris recognition; security of data; Daugman-Wilds iris localization algorithm; authentication system; biometric recognition; biometrics technology; blurred picture; image quality; iris boundary center; iris boundary radius; iris localization method; two-phase approximation localization; vote method; Accuracy; Educational institutions; Filtering; Image edge detection; Image quality; Iris; Iris recognition; iris localization; iris recognition; two-phase approximation;
Conference_Titel :
Internet of Things (iThings/CPSCom), 2011 International Conference on and 4th International Conference on Cyber, Physical and Social Computing
Conference_Location :
Dalian
Print_ISBN :
978-1-4577-1976-9
DOI :
10.1109/iThings/CPSCom.2011.130
