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MIT's 3D motion-tracking tech can see you through walls, no camera needed
JOSEPH VOLPE engadget.com Even if you hide behind a wall, MIT's 3D motion-tracking tech can still see you. It can even tell if you've "fallen and can't get up." Sure the tech sounds invasive, but the team's WiTrack (as it's been dubbed) device is actually less intrusive thanMicrosoft's Kinect -- there's no camera watching your every move. Nor is there any wearable tech involved. Instead, the setup relies solely on a wireless network and your body's ability to bounce back those radio waves. These relatively weak signals, said to be about 1,000x less powerful than that of a smartphone and 100x less than a typical WiFi network, are transmitted throughout a home environment where they'll then reflect off of surrounding objects and be read by three transceivers to determine your location. to read more click here: engadget.com
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