Using computers to view the unseen

#artificialintelligence 

Cameras and computers together can conquer some seriously stunning feats. Giving computers vision has helped us fight wildfires in California, understand complex and treacherous roads -- and even see around corners. Specifically, seven years ago a group of MIT researchers created a new imaging system that used floors, doors, and walls as "mirrors" to understand information about scenes outside a normal line of sight. Using special lasers to produce recognizable 3D images, the work opened up a realm of possibilities in letting us better understand what we can't see. Recently, a different group of scientists from MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL) has built off of this work, but this time with no special equipment needed: They developed a method that can reconstruct hidden video from just the subtle shadows and reflections on an observed pile of clutter.