this post was submitted on 14 Sep 2025
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So I had researched it a while ago and don't recall having found anything effective and non-suspicious to protect from public camera mass survaillence in cities and the like. Is there anything that is a good option for that yet, and if so, could you point me toward it?

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[–] brownmustardminion@lemmy.ml 17 points 2 days ago* (last edited 2 days ago) (1 children)

IR blocking sunglasses are the simplest and most practical solution.

Facial recognition systems compare the distance ratios between your eyes and nose primarily. Hiding your eyes is very effective towards fucking that up. A mask alone is typically not enough.

[–] balsoft@lemmy.ml 9 points 2 days ago* (last edited 2 days ago) (1 children)

Sunglasses alone are not enough either. Modern face recognition tech is way better than just distance ratios

[–] brownmustardminion@lemmy.ml 4 points 1 day ago (2 children)

Got any further info about these more advanced methods?

I haven't seen anything beyond the feature distance models. I have seen the models that essentially recreate you entire anatomy in 3D, place it in a database, then use that profile to match to in the future--almost like a 3D match move artist would do for visual effects. Not sure if this is just a proof of concept though.

I wouldn't be surprised if the millimeter wave scanners at airports have been collecting 3D models of us for this database over the last decades.

[–] sobchak@programming.dev 2 points 18 hours ago

I'd guess they probably just have a big blackbox ML image model now. A lot of computer vision tasks are being replaced by blackbox models.

[–] balsoft@lemmy.ml 2 points 20 hours ago (1 children)

I don't have any specific technical info. I just know that even 3 years ago the face recognition tech in Moscow could successfully match people even with sunglasses on.

[–] brownmustardminion@lemmy.ml 1 points 18 hours ago

The question is whether they were using infrared to see through normal sunglasses. IR blocking sunglasses prevent "night vision" from seeing through the lenses. Under infared, you can see through normal dark sunglasses like they aren't even there.