33-27 A NEW METHOD OF EYELID DETECTION FOR IRIS RECOGNITION SYSTEM
O NOUĂ METODĂ DE DETECTARE A PLEOAPELOR
PENTRU SISTEMUL DE RECUNOAȘTERE A IRISULUI
This paper presents a new method for detecting the upper and lower eyelids. The method is called Refine-Connect-Smooth (R-C-S). It consists of three algorithms, Canny edge detector, Refine Edge Map (REM) and Connect and Smooth Edges (CSE). The algorithm is applied after the iris extraction stage therefore any incorrect detection of the eyelid will not decrease the accuracy of iris localization. The application of the method to CASIA database images version-1.0 has shown reasonable accuracy compared to previous methods of eyelid detection. For upper eyelid the accuracy reached 87.3%, while for lower eyelid the accuracy reached 99.2%.
Keywords: iris recognition system, biometric measurement system, eyelid detection, eyelash detection, iris localization, iris boundary detection