"Shimmer Vision" Scopes See Better Using Heat

holy_calamity writes "New Scientist reports on a neat DARPA idea that uses the shimmer of heat haze to allow binoculars to see further. It works by exploiting the fact that some distortions from heat haze actually magnify objects behind them. The binoculars collect a series of frames when that is occurring to boost magnification by 3 times. The design goal is to be able to present one image a second, and to enable facial recognition at 90% accuracy at a distance of 1 km. The scopes could be on the battlefield inside of 3 years."

Comments

Repaired link from TFA

[Stuntmonkey]

The article has a broken link to the original technical presentation. Try this: http://www.iol.umd.edu/Presentations/slideshow.php?id=54

The results here are very interesting. This is different -- and harder -- than the adaptive optics used in ground-based astronomy because the distorting medium is thick, extending all the way to the object being observed. What this implies is that the wavefront distortion isn't uniform across the entire image. So they pick out regions of good (sharp) seeing from each frame, then stitch them together to produce an entire sharp frame. They'll need a fairly fast image processor in those binoculars.