For the normalized iris texture images, if we find a effective way to extract their characters, then we can classify the iris images.

对于提取出来的虹膜纹理图像，如果能够找到一种有效提取虹膜纹理部分特征的方法就能够完成虹膜纹理图像的分类。

youdao

How to find the true iris position in an iris image is a key problem to be solved in iris recognition.

如何有效地确定虹膜在图像中的位置，是虹膜识别中需要解决的关键问题之一。

youdao

Then use the Hough transform to find the iris geometry.

然后再使用Hough变换找出虹膜的几何信息。

youdao

These have reported no false matches in millions of iris comparisons and very few failures to find a match.

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