This should get the tinfofil hat brigade nice and riled up. New research from the University of California Santa Barbara has shown it is possible to make a “high-resolution 3D through-wall imaging of completely unknown areas” using only basic Wi-Fi signals and two drones.

The concept is pretty straightforward but the tech behind it is fairly complex. One drone acts as the Wi-Fi broadcaster, and the other drone “reads” the signals and maps out the interior. Both drones follow multiple paths around the area until a satisfactory image is created.

The idea is to use this tech for “emergency response, archaeological discovery, and structural monitoring”.

The link to the video showing the drones in action, the tech involved, and article is on the TechTV site here