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Fingerprint Scanner That Works From 6 Feet

Posted by CmdrTaco on from the welcome-to-the-future dept.

Bruce Schneier found a somewhat older story that I haven't seen before about a device that is smaller than a tissue box, but uses two 1.3 megapixel cameras and a polarized light source to scan a fingerprint from two meters away.

2 of 83 comments (clear)

  1. Not to be technical on a tech site..but by nomel · · Score: 3, Interesting

    Could someone explain how this works? Is this some sort of speckle interferometer? I don't understand how you can get the ridge profile by separating the light polarities unless you're shining the laser at very steep angles..

  2. Good News by ThatsNotPudding · · Score: 3, Interesting

    for glove sales.