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Scientists Are Turning WiFi Routers Into Creepy Radar Cameras

Scientists Are Turning #WiFi Routers Into Creepy Radar Cameras #techradio #iOT

  • Your WiFi router is probably sitting passively in some corner of your room, beaming out invisible light (and the internet).
  • It’s essentially carrying a holographic image of the room with it.Researchers have tried using WiFi signals to make images before, but not with an out-of-the-box commercial router, according to a release in the American Physical Society’s Physics.
  • That’s exactly what a team of researchers at the Technical University of Munich has now done, imaging a cross in a room using an unmodified commercial Wi-Fi router.For years, we’ve been told that strapping a fitness tracker to your wrist is a great way to track…Read more Read more The setup placed the cross between the router and a moving antenna, with another antenna off to the side to help with mathematical calculations.
  • The antennae collected light directly from the router and light that reflected our bounced around and off different surfaces.
  • Making that image 3D required combining images obtained at different distances, according to the research published this week in Physical Review Letters.The method has some drawbacks—it’s slow, and there’s only a set cone of light from the router inside of which accurate images can be produced, outside of which things are blurry.

Your WiFi router is probably sitting passively in some corner of your room, beaming out invisible light (and the internet). But it’s also sending information on all the stuff the light passes through and around. It’s essentially carrying a holographic image of the room with it.

@MarshaCollier: Scientists Are Turning #WiFi Routers Into Creepy Radar Cameras #techradio #iOT

Your WiFi router is probably sitting passively in some corner of your room, beaming out invisible light (and the internet). But it’s also sending information on all the stuff the light passes through and around. It’s essentially carrying a holographic image of the room with it.

Researchers have tried using WiFi signals to make images before, but not with an out-of-the-box commercial router, according to a release in the American Physical Society’s Physics. That’s exactly what a team of researchers at the Technical University of Munich has now done, imaging a cross in a room using an unmodified commercial Wi-Fi router.

Scientists Are Turning WiFi Routers Into Creepy Radar Cameras