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A motorised wheelchair that responds to subtle head and hand gestures has
been developed by artificial intelligence experts at Osaka University in Japan.
If you are out of the wheelchair, you can call it over simply by beckoning with
your hands. Once seated in the chair you can steer it with your head. A video
camera monitors your face, so that turning to look in a certain direction points
the wheelchair that way. Stops and starts are controlled by nodding.