The Visual Microphone: Passive Recovery of Sound from Video
CTOvision
AUGUST 4, 2014
'By Bob Gourley. This post deals with exciting science that is fun to watch. But it is also a topic which will have significant implications for security professionals and perhaps also for law enforcement and other mission domains. The video at this link and embedded below shows research and results of ways to extract audible sound from a distance from a variety of passive methods.
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