MIT uses Wi-Fi to look through walls

Researchers at MIT’s Computer Science and Artificial Intelligence lab are working on a technology, called RF Capture, which uses radio frequencies to see people standing on the other side of a wall with startling clarity.
The team behind RF Capture has been working with similar technology since 2013. They’ve used that to track subtle movements of human bodies, like breathing, from behind walls, but the new system is capable of seeing even finer detail.
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