Retinal scans, finger printing or facial recognition get most of the publicity but researchers across the world are quietly labouring away at alternative types of biometrics.

Recognition by the way someone walk (their gait), the shape of their ears, the rhythm they make when they tap and the involuntary response of ears to sounds all have the potential to raise the stock of biometric techniques. According to Professor Mark Nixon, of the Image Speech and Recognition Research Group at the University of Southampton, each has unique advantages which makes them worth exploring.

By John Leyden at The Register.

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