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Surgeon David Allamby FRCS(Ed), FRCOphth
 David Allamby

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Using eyes to fight crime

Learn more about vision correction

09
Jan
2014

Using eyes to fight crime? Researchers at the University of Glasgow have been able to distinguish faces from their reflection in another person’s eye. The team have used a 39 megapixel camera to take a photograph of a person in perfect lighting from one metre away. The resulting high resolution image could then be enlarged, focused on the eye, and it revealed any object or person that was in front of it when the picture was taken, using the eye as a tiny mirror.

Using eyes to fight crime

The iris typically occupies only 0.5 per cent of the area of a person’s face, meaning that the amount of reflected data that can be extracted to form an image is very small. Advances in camera technology have increased the number of pixels captured over th in the tests the researchers had placed bystanders in front of the eye, and they were able to e years but the quality of images of reflected faces still can be very blurry or pixelated. Despite this,be identified accurately 70 - 84% of the time.

This technology is thought to be a good option for surveillance and identifying suspects who may have been involved in a crime especially in complex cases where multiple suspects are involved. Researchers have also said that if data was available from both eyes they could make up a 3D image constructed from the subjects viewpoint.

So be careful if you are thinking of doing anything a little bit naughty, more people could be watching you than you think!

By: David Allamby
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