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Visually Guided Input Devices


Robust knowledge of body part position and body pose enables more than just gross gesture recognition. It provides boot-strapping information for other methods to determine more detailed information about the user. Electronically steer-able phased array microphones can use the head position information to reject environmental noise. This provides the signal-to-noise gain necessary for remote microphones to be useful for speech recognition techniques [7]. Active cameras can also take advantage of up-to-date information about body part position to make fine distinctions about facial expression, identity, or hand posture.[8]

Christopher R. Wren
Thu Jul 10 10:04:10 EDT 1997