WiFi routers can see people through walls. Here’s how it works
WiFi routers can see people through walls. Here’s how it works
With the help of AI, the researchers were able to detect the movement of human bodies in a room using Wi-Fi routers -- even through walls.
cross-posted from: https://lemmy.kevitprojects.com/post/8452
What do you guys think about this?
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Some consumer wifi company - linksys eero possibly? - some years ago was rolling out a home security feature which used signal differences in the mesh links to detect movement in the house. Not quite 1:1 with mapping, but similar.
There's been a bunch of "wifi as passive radar" in academic stuff for 10+ years, but w/out the modern image recognition stuff to boost it; most of if lacked public attention due to either academic paywalls or the difficulty of obtaining SDR gear in any affordable way at the time.