The 'Wi-Vi' Lets You See Through Walls with Your Router

By: Alexander Lam - Published: Jul 3, 2013 • References: web.mit.edu and gizmag
Using Wi-Fi signals to see through walls, the 'Wi-Vi' system acts to provide the masses with cheap and effective x-ray vision. Developed by researchers at the Computer Science and Artificial Intelligence Laboratory in MIT, the system lets anybody see what's happening on the other side of a wall.

Wi-Vi uses technology similar to radar and sonar. However, the ingenious system uses Wi-Fi signals instead. The system uses only one receiver to send out or receive Wi-Fi signals. Since signals can penetrate walls, the system can detect movement without a line of sight.

Since Wi-Fi signals are so widespread, Wi-Vi has the potential to be used for gesture-based controls. The system's ability to see beyond walls means that the device can let you control your gadgets no matter where you are in your house.