DARPA Binoculars beats the diffraction limit
The military research agency DARPA has developed a new generation of digital binoculars, which several times improve image quality.
How the Super-Resolution Vision System (SRVS) technology works is shown in the diagram below. Binoculars shoots video by selecting a plot with a distinct image from each captured frame in order to make a resultant image of such pieces in real time.
The highlight is exactly what these fragments are. These are small areas at the boundaries between air layers of different density where short-term atmospheric “microlenses” are randomly formed. By the way, this interesting natural phenomenon has actually been known to science under the name of a mirage for a long time.
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DARPA binoculars can virtually unite these microlenses into one large additional lens, increasing the actual focal length of their optical system and exceeding even the natural diffraction limit. Reportedly, on a 6-centimeter lens (!) From a distance of 1 km, the face of a moving person is recognized with an accuracy of 90%. True, so far the power of electronics in binoculars is only enough for 1 frame per second.
The engineers set the task of making a real military device weighing no more than 2 kg and no longer than 35 cm. So far, these parameters are far away.
via New Scientist
How the Super-Resolution Vision System (SRVS) technology works is shown in the diagram below. Binoculars shoots video by selecting a plot with a distinct image from each captured frame in order to make a resultant image of such pieces in real time.
The highlight is exactly what these fragments are. These are small areas at the boundaries between air layers of different density where short-term atmospheric “microlenses” are randomly formed. By the way, this interesting natural phenomenon has actually been known to science under the name of a mirage for a long time.
')
DARPA binoculars can virtually unite these microlenses into one large additional lens, increasing the actual focal length of their optical system and exceeding even the natural diffraction limit. Reportedly, on a 6-centimeter lens (!) From a distance of 1 km, the face of a moving person is recognized with an accuracy of 90%. True, so far the power of electronics in binoculars is only enough for 1 frame per second.
The engineers set the task of making a real military device weighing no more than 2 kg and no longer than 35 cm. So far, these parameters are far away.
via New Scientist
Source: https://habr.com/ru/post/45753/
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