Researchers had a person walk around a square of 28 radio transceivers mounted on plastic pipes. The person creates shadows in the radio waves, resulting in the blob-like image (right). Credit: Sarang Joshi and Joey Wilson, University of Utah.From Live Science:
A new contraption that essentially sees through walls using radio receivers to track moving objects could one day help police and others nab intruders and rescue hostages or fire victims.
Joey Wilson and Neal Patwari of the University of Utah used so-called radio tomographic imaging (RTI), which can detect and track moving people or other objects in an area surrounded by inexpensive radio transceivers that send and receive signals, they announced today.
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My Comment: Expect this technology to be adopted by the military very soon .... its applications are obvious.
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