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AllSee detects the unique signal changes (shown on the oscilloscope) and classifies a rich set of hand gestures.

Battery-free technology brings gesture recognition to all devices

Posted: February 27, 2014

University of Washington computer scientists have built a low-cost gesture recognition system that runs without batteries and lets users control their electronic devices hidden from sight with simple hand movements. The prototype, called "AllSee," uses existing TV signals as both a power source and the means for detecting a user's gesture command. Read more »