Zothecula writes "Facial recognition might be all the rage in giving computer systems the ability to ascertain the identity of individuals — what with most people having different facial features and all. But a team from the Hasso Plattner Institute in Potsdam, Germany, has taken a different approach to identify users of touch-based tabletop computers like Microsoft's Surface. Instead of focusing on the face, the team has looked in the opposite direction to develop a system known as Bootstrapper, which distinguishes between users based on their footwear ."
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