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April 26, 2015 08:00 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/WvjdrMfHW2g/seeing-buildings-shake-with-software
Seeing Buildings Shake With Software
mikejuk writes: In 2012 a team from MIT CSAIL discovered that you could get motion magnification by applying filtering algorithms to the color changes of individual pixels. The method didn't track movement directly, but instead used the color changes that result from the movement. Now another MIT team has attempted to put the technique to use in monitoring structures — to directly see the vibrations in buildings, bridges and other constructions. Currently such monitoring involves instrumenting the building with accelerometers. This is expensive and doesn't generally give a complete "picture" of what is happening to the building. It would be much simpler to point a video camera at the building and use motion magnification software to really see the vibrations and this is exactly what the team is trying out. Yes you can see the building move — in real time — and it seems to be a good match to what traditional monitoring methods say is happening. The next stage is to use the method to monitor MIT's Green Building, the Zakim Bridge and the John Hancock Tower in Boston.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/WvjdrMfHW2g/seeing-buildings-shake-with-software
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