Researchers at the MIT Media Lab have a developed a laser-based camera that can “see around corners and image objects that were never in its direct line of sight.” Technically speaking, the “system works by firing rapid femtosecond laser pulses — pulses so short they are measured in quadrillionths of a second — at a surface opposite the obscured object it is trying to image, like the wall opposite a doorway for instance.” Continue reading for a video preview.
The laser light bounces off the wall and scatters. Some of that light hits the target object and likewise scatters. And some of that light ends up bouncing back off the wall and finding its way back to the camera sensor.
[via PopSci]
