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Get shape of room and people in it by echoes using one mike

Get shape of room and people in it by echoes using one mike


"Bat-Sense" Technology for Smartphones Generates Images From Sound

3D imaging from multipath temporal echoes

arXiv paper abstract https://arxiv.org/abs/2011.09284


... temporal information encoded in the return echoes that are reflected multiple times within a scene is sufficient to faithfully render an image in 3D. Numerical modelling and an information theoretic perspective prove the concept and provide insight into the role of the multipath information. We experimentally demonstrate the concept by using both radio-frequency and acoustic waves for imaging individuals moving in a closed environment.


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