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Photos: Scanning human veins

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• Mapping veins as a human 'bar code'

February 1, 2006 6:31 PM PST

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Luminetx out of Memphis, Tenn., has come up with a new method for identifying individuals. The technology is based on an infrared scan of the blood cells running through veins, which is then analyzed by a computer. Here, a real-time, infrared scan of a man's veins, projected onto his arm at The Entertainment Gathering in Los Angeles.

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