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Input Devices Technology

Gesture Recognition Without Batteries 22

Posted by Soulskill
from the how-talking-with-your-hands-becomes-untenable dept.
An anonymous reader sends this news from the University of Washington: "[C]omputer 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 (PDF). 'This is the first gesture recognition system that can be implemented for less than a dollar and doesn't require a battery,' said Shyam Gollakota, a UW assistant professor of computer science and engineering. 'You can leverage TV signals both as a source of power and as a source of gesture recognition.' The researchers built a small sensor that can be placed on an electronic device such as a smartphone. The sensor uses an ultra-low-power receiver to extract and classify gesture information from wireless transmissions around us. When a person gestures with the hand, it changes the amplitude of the wireless signals in the air. The AllSee sensors then recognize unique amplitude changes created by specific gestures."

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Gesture Recognition Without Batteries

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  • psychic (Score:4, Interesting)

    by geoskd (321194) on Saturday March 01, 2014 @04:09PM (#46377379)

    As these devices get closer and closer to "invisible" technology, it starts to lend some credibility to the idea that someday humans will be able to be retrofitted with various ESP-like abilities...

    Ok, break out your tinfoil hats *now*

  • Re:Prior art (Score:2, Interesting)

    by Anonymous Coward on Saturday March 01, 2014 @07:11PM (#46378321)

    In the ancient days of my youth I connected a short wire to the grid of of a simple vacuum tube and monitored the plate current on a meter. As I moved around the room the meter current fluctuated. This illustrates just how sensitive electronics are.

APL is a write-only language. I can write programs in APL, but I can't read any of them. -- Roy Keir

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