this post was submitted on 24 Apr 2025
32 points (100.0% liked)
Privacy
2027 readers
84 users here now
Welcome! This is a community for all those who are interested in protecting their privacy.
Rules
PS: Don't be a smartass and try to game the system, we'll know if you're breaking the rules when we see it!
- Be civil and no prejudice
- Don't promote big-tech software
- No reposting of news that was already posted
- No crypto, blockchain, NFTs
- No Xitter links (if absolutely necessary, use xcancel)
Related communities:
Some of these are only vaguely related, but great communities.
founded 5 months ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I didn't read into the specifics of the IR LED they are using, but assuming it's somewhere in the 850-900nm wavelength with sufficient power, they should be blocking you out if the CCTV is recording infrared images.
There's a video here that explains the principle. I've highlighted the key part, but feel free to check out the whole thing to understand the idea: https://youtu.be/fywvB4Unjv4?t=240
Thing is, if the camera records in the regular, visible spectrum only, it will see you just the way you are. Most cameras automatically switch to IR mode when the environmental light strength drops below a certain threshold, so you'd be "invisible" at night, but clear as day during, well, daytime.
I've heard that most commercial ID uses infrared and tracks your eyes, so this should do a good job against those systems, even in bright spaces. It won't help for visible light cameras, just auto ID detection.
Ah right, that could be. No expert on commercial systems tbh.
Thanks very interesting.