A single pixel device which can record three-dimensional images has been built at the Shanghai Institute of Optics and Fine Mechanics in China.
Single pixel "cameras" are already capable of of generating two-dimensional pictures through a process known as ghost images but the team in China have used a timed laser pulse to give the system the ability to detect spatial arrangements.
By: Philippa Warr, Edited by: Liat Clark
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via Wired.co.uk
http://www.wired.co.uk/news/archive/2013-01/31/single-pixel-3d-pictures
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