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MIT researchers create camera that can see around corners

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Fans of the classic 1982 science fiction movie Blade Runner will remember the ESPER machine that allows Deckard to zoom in and see around corners in a two-dimensional photograph. While such technology is still some way off, researchers in MIT’s Media Lab have developed a system using a femtosecond laser that can reproduce low-resolution 3D images of objects that lie outside a camera’s line of sight.

The experimental setup designed by the MIT researchers gained attention last December when video of it capturing a burst of light traveling through a plastic bottle was released. But as amazing as that capability is, it was for the even more amazing ability to literally see around corners that the team says the system was developed.

It works by emitting a burst of light from a femtosecond laser that reflects off visible surfaces – such as an opaque wall – onto objects that are hidden from the camera’s direct view. The light then bounces off the object before ultimately making its way back to a detector. This process is repeated a number of times with the laser targeted at different areas of the reflecting surface.

Continue via MIT researchers create camera that can see around corners.


Written by Kees Winkel

March 21, 2012 at 11:05

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