Biorthogonal multiwavelets filter characterized with self-affine was proposed to extract iris texture feature and local with global feature was applied to recognize iris.

• 用具有自仿映射特性的区间双正交多小波滤波器提取虹膜的纹理特征，并采用局部和全局特征相结合的方法对虹膜进行识别。