Technology for seeing around corners would be of use to the military Matthew Horwood/Getty Images
An ordinary camera could soon take photos of things that are out of sight, thanks to algorithms that interpret how light bounces off a wall.
Normally, when light bounces off rough surfaces, like walls, it scrambles the scene into a messy blur, says at the University of Science and Technology of China, Hefei. Our goal was to unscramble that blur and recover the hidden scene. Think of it like turning a rough wall into a mirror.



