【摘要】 提出一种新的虹膜定位方法。首先用灰度门限法提取虹膜的内边界象素点 ,然后对瞳孔内部一定灰度范围内的值进行二值化填充 ,用行列扫描的方法去除瞳孔外围的杂点 ,初步定位出瞳孔的圆心和虹膜的圆心 ,最后应用最小二乘法拟合获得精确的瞳孔和虹膜的圆心及半径更多还原

【Abstract】 A new iris location method was promoted. At first, we extracted the inner boundary of iris based on the grey scale and filled in the inner part of the pupil, then got rid of the points out of the pupil based on line-rank scanning, finally obtained the precision location of the center and circle of pupil and iris with least square method.更多还原