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X-ray vision, a comic book fantasy for decades, is becoming a reality in a lab at MIT. A group of researchers led by Massachusetts Institute of Technology professor Dina Katabi has developed software that uses variations in radio signals to recognize human silhouettes through walls and track their movements.The device displays the signal on a screen, where the person's movements can be tracked in real time.A company set up to market the technology, now dubbed Emerald, will spin out of the MIT lab next year, with a goal of marketing the device early in 2017, and it's expected to sell for $250 to $300, Adib said. The team is working to make the device smaller and to develop an interface that will let users configure it through a smartphone app, Katabi added.
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