In this video they trained it with a camera. They needed a camera in the space being monitored to train the AI. Move the WiFi to a different space and I doubt the AI could give any useful pictures without retraining.
In fact, the three letter agencies have had this technology in "gun" form for more than 10 years. This was with 2.4Ghz from standard WIFI. With it they point the gun at a building and it provides "enhanced" images of the occupants inside - even through walls. No window required.
The advent of 5Ghz and 5G significantly enhances this effect because it effectively provides mm-wave radar for this technology.
What you see in this video is primitive compared to what was already available 10+ years ago.
The advent of 5Ghz and 5G significantly enhances this effect because it effectively provides mm-wave radar for this technology
5 GHz has a wavelength of 5.997 cm. You have to go above 25 GHz to hit millimeter wavelengths, which 5G technology is capable of but not widely in use at the moment at those wavelengths. WiMAX technology has been using those frequencies for more than a decade and is widely used by cellular providers, but nobody seemed to care about that the way they do 5G.
Check the high end 5G frequencies. Originally I thought they were back haul only. Nope.
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