Analysis of Partial Iris Recognition

The iris (Fig. 1) is a protected internal organ behind the cornea which gives color to the eye [1]. Ophthalmologists Flom and Safir first noted that the iris is very unique for each person and remains unchanged after the first year of human life [3]. For each person, the left eye is distinctive from the right eye [3]. In 1987, they described a manual approach for iris recognition based on visible iris features. In 1994, Daugman invented a first automatic iris recognition system [2]. Since then, various algorithms have been proposed for iris recognition [3-10], which include Daugman’s quadrature 2D Gabor wavelet method [2] and one-dimensional iris recognition approach [4, 5, 13] by Du et. al.