Any wall can also be became a digicam to look round corners

An unusual digicam may just quickly take footage of items which can be out of sight, due to algorithms that interpret how gentle bounces off a wall.

“Normally, when light bounces off rough surfaces, like walls, it scrambles the scene into a messy blur,” says Wenwen Li on 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.”