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 2 days ago* (last edited 2 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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[–] nutsack@lemmy.dbzer0.com 22 points 1 day ago (1 children)

you can also take a picture of a person with a camera that senses light beams

[–] Krudler@lemmy.world 3 points 1 day ago* (last edited 1 day ago)

The most primitive of physics concepts, the transmission/absorption/reflection of energy, is completely unknown to most people it would seem.