WiTrack motion sensing technology that can see through-walls developed by MIT

Imagine playing  a video game while moving freely throughout your house.

A revolutionary new technology that uses radio signals to track a person through walls and obstruction could change the way video games are played, scientists say.

Researchers from the Massachausetts Institute of Technology (MIT) have developed the new high-resolution, 3D motion tracking system dubbed "WiTrakc," which can pinpoint a person's 3-D location to within 10-20 centimeters-about the width of an adult hand.

"Imagine plaing an interactive video game that transforms your entire home into a virtual world. The game console tracks you as you run down real hallways away from video game enemies, or as you hide from other players behind couches and walls. This is what WiTrack can bring to video gaming," said Dina Katabi, a professor of computer science and engineering and co-director of the MIT Centre for wireless Networks and Mobile Computing.

Earlier this year, Katabi and her graduate student Fadel Adib unveiled WiVi, a system that defects humans through walls and can track the direction of their movement using Wi-Fi signals.