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Well as it happens there are special sonar cameras out there capable of providing real-time video images[0][1]. The use case here is being able for a diver or
by gene-h 10y ago
Well as it happens there are special sonar cameras out there capable of providing real-time video images[0][1].
The use case here is being able for a diver or ROV to see in murky water
[0]http://www.soundmetrics.com/image-gallery http://www.soundmetrics.com/image-gallery
[1]http://www.apl.washington.edu/programs/z_DIDSON/Pages/LIMIS.html http://www.apl.washington.edu/programs/z_DIDSON/Pages/LIMIS....
- space_fountain 10y agoNot quite the same thing though. These systems are active. They have sound being produces most likely at a very specific frequency and then listened for so that depth information can be gathered. This instead images the sound that's already out there in the light. It's the difference between lidar and a camera
- moheeb 10y agoSounds to me more like the difference between using the flash or not.
- eric_h 10y agoSort of, except the "camera" can't make any use of "light" generated by anything other than the flash.
- wbeaty 10y agoNope, theirs is the sound-camera, detector array and sound-lens, but with an acoustic floodlight. I think they do use ranging though, so the 2D image is "sound camera" in one raster dimension, and "sonar range" in the other.