Iris recognition is a noninvasive technique for human identification.

虹膜识别是一种非侵犯性的人类身份识别技术。

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"Irises are very good for recognition but you can put in dilation drops which change the iris completely. No technique is infallible, " he said.

瞳仁认证虽然不错，但滴入扩瞳药水就可以轻易地改变瞳仁大小。所以说没有什么技术是绝对可靠的。

youdao

"Irises are very good for recognition but you can put in dilation drops which change the iris completely. No technique is infallible, " he said.

瞳仁认证虽然不错，但滴入扩瞳药水就可以轻易地改变瞳仁大小。所以说没有什么技术是绝对可靠的。

youdao