For the purpose of detecting iris precisely and quickly,an ellipse pupil based detection algorithm was proposed based on some prevailing localization algorithms.

• 针对现有虹膜定位算法的局限性,提出一种检测变形瞳孔的算法,实现了精确快速的虹膜定位,并通过最大类间方差法确定图像阈值。