After finding parameter of coarse location, the inner and outer circle can be got based on the parameter because the circle of pupil and circle of iris nearly have the same center.
采用二值化的方法获得瞳孔的粗定位的参数后，由于瞳孔和虹膜的外边缘近视为同心圆，该参数可用作提取虹膜外边缘的基础。
A fast iris location algorithm is proposed to aim at the problems such as inner edge deformation in iris and blurring outer edge leading to difficult iris location.
针对虹膜内边缘易变形，外边界边缘模糊从而虹膜定位困难等问题，提出了一种快速虹膜定位算法。
A fast iris location algorithm is proposed to aim at the problems such as inner edge deformation in iris and blurring outer edge leading to difficult iris location.
针对虹膜内边缘易变形，外边界边缘模糊从而虹膜定位困难等问题，提出了一种快速虹膜定位算法。
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