Researchers at the Massachusetts Institute of Technology's Computer Science and Artificial Intelligence Laboratory invented a device that can see through walls and identify the people standing behind it.
The new device is called RF-Capture which works by scanning 3-D space via low-power radio frequency signals, that are 1/1000th the power of Wi-Fi, through a wall.
The waves reflect off objects including the human body and bounce back to the device. The device then intelligently stitches the person's reflections across time to reconstruct their silhouette into a single image.
The stitch looks like a heat sensor map of the person, with the head, chest, arms and feet brightly coloured against a blue background.
The RF-Capture can also tell five to 15 people apart almost accurately along with recognising different postures.
The applications of the device span enormously. I can be used in film-making to replace sensor covered suits, for better vision in low visibility especially rescue missions and security purposes.
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