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MIT的研究,从视频中提取、分析物体受到声波产生的振动模式,从而恢复重建、听到声音。这也是一种遥感吧。
The Visual Microphone: Passive Recovery of Sound from Video
http://people.csail.mit.edu/mrub/VisualMic/
Researchers at MIT, Microsoft, and Adobe have developed an algorithm that can reconstruct an audio signal by analyzing minute vibrations of objects depicted in video.
http://newsoffice.mit.edu/2014/algorithm-recovers-speech-from-vibrations-0804
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