How can you measure someone's pulse, just by pointing a camera at their face? MIT computer scientists have created an algorithm that can do just that, by amplifying the subtle changes in motion and colour in a video.
The algorithm analyses a video and looks for temporal variations -- or elements of the video that change over time -- and then dramatically amplifies those motions.
By: Mark Brown, Edited by: Duncan Geere
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via Wired.co.uk
http://www.wired.co.uk/news/archive/2012-07/25/mit-algorithm
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