this post was submitted on 25 Jul 2025
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Humans can be tracked with unique 'fingerprint' based on how their bodies block Wi-Fi signals (www.theregister.com)
submitted 3 days ago* (last edited 3 days ago) by bignose@programming.dev to c/technology@lemmy.world
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The Sapienza computer scientists say Wi-Fi signals offer superior surveillance potential compared to cameras because they're not affected by light conditions, can penetrate walls and other obstacles, and they're more privacy-preserving than visual images.

[…] The Rome-based researchers who proposed WhoFi claim their technique makes accurate matches on the public NTU-Fi dataset up to 95.5 percent of the time when the deep neural network uses the transformer encoding architecture.

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[–] Vinstaal0@feddit.nl 7 points 3 days ago (1 children)

It is cool for home automation if you can turn it into a presence detection software (do not connect your Homeassistant to the internet though)

[–] unmagical@lemmy.ml 13 points 3 days ago (1 children)

If all you need is presence detection then a motion sensor would be vastly more efficient.

If you actually need identity detection, then maybe, but you'll still have to have a camera or detailed access logs to associate the interference signature with a known entity and at that point you may as well just put an RFID reader under the bowl you throw your keys into or use facial or gait detection.

[–] Vinstaal0@feddit.nl 1 points 2 days ago

A motion detector is far more inferior to precense detectors, most just use milimator wave though.