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+ - CSI Style Zoom Sees Faces Reflected In The Eye ->

Submitted by mikejuk
mikejuk (1801200) writes "You must have seen TV programs where the CSI person is asked to zoom in on face or worse the reflection of a face in the victim's eye. This is clearly impossible — or is it?
A recent paper by Dr Rob Jenkins of the Department of Psychology at York University (UK) has managed to prove that you can get useful images of faces from the reflections in eyes. It really is as simple as zooming in. The catch is that the experiments were done with a 39 mega pixel camera — even so the actual final images were low resolution.
In the experiment a number of people were photographed with a "bystander" in a position so that a reflection of their face would be captured in the eye. The resulting extracted image of the reflection in the eye was only 27x36 and then rescaled using bicubic interpolation to 400x240 or bigger and enhanced using standard PhotoShop operations to normalize the contrast and brightness.
Test subjects were able to match faces using the low resolution images but the important result was that if the subject knew the person in the photo then recognition went up to 90% with false positives down at 10%.
So the next time you appear in a photo consider the fact that a simple procedure might reveal who you are with."

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CSI Style Zoom Sees Faces Reflected In The Eye

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