MIT’s microwave camera can do 3-D imaging using time of flight, in the same way that Microsoft’s latest Xbox Kinect sensor works. By taking a more camera-like approach to radio frequency imaging, essentially treating microwaves like waves of light and using a passive reflector like a lens, MIT has been able to leverage computational-imaging techniques to develop a low cost, high resolution imaging system. Radar systems also tend to be big, complex, low resolution, and expensive. Like radar, microwaves don’t really notice things like darkness or fog or walls, but unlike radar they’re not confused by the kinds of angled surfaces that make the stealth fighter so stealthy. At MIT, they’ve been working on a prototype for a time of flight microwave camera which can be used to image objects through walls, in 3-D.Ī microwave camera is sort of like a cross between a visible light camera and a radar imaging system, incorporating some of the advantages of each. As always, we’re especially interested in anything that confers superhero-like abilities, like X-ray vision, or in this case, M-wave vision, which sounds even more futuristic. Visible light is all well and good for things like eyeballs, but here at IEEE, we do our best to cover the entire spectrum.
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