Technique gets clear images from light reflected off blank paper(arstechnica.com) |
Technique gets clear images from light reflected off blank paper(arstechnica.com) |
Available here: http://www.cl.cam.ac.uk/~mgk25/ieee02-optical.pdf
Pretty amazing that this actually works, just using a high-speed photo-sensor – and doesn't even require line of sight, a reflection off a wall is enough. Unfortunately, I don't think it will work on LCD screens.
Further investigation finds a few thumbnails an a paywall.
Figure 1: http://i.imgur.com/imfvc.png Figure 2: http://i.imgur.com/xKIOv.png Figure 3: http://i.imgur.com/GevEd.png
There's also an article about it on Petapixel: http://www.petapixel.com/2012/07/16/researchers-develop-came...
and the full academic paper is available here: http://arxiv.org/pdf/1202.2078.pdf