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by marginalia_nu
1697 days ago
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I figured if you were to create an optical camera on the same principles of an acoustic camera you would get into trouble with the very short coherence length of sunlight. It's easy enough to build something that can deal with a laser, but sunlight has a coherence length of just a couple of dozen micrometers. If you are working on a larger scale than that, the phase information effectively becomes useless. |
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