Not sure if it can fool all cameras, But LEDs seems to bright for some cameras and you can buy hats with embedded LEDs.[0]

Unfortunately this will make you stand out like a Christmas tree on the video. But this must cripple automated facial recognition technology.

[0]: http://odditymall.com/justice-caps-hide-your-face-from-surve...

I think infrared LEDs can solve the problem quite easily.

Unless things have changed. This shouldn't affect face recognition systems. Facial recognition systems look for 2 things.

1. They look for the general shape of the face

2. They look for a skin region and classify it based on shape.

From the segment, then it becomes a complex search problem to match the face to a known face.

I'm guessing the opportunity here is to disrupt the face detection step - make the face detector zero in on your non-face sticker/image, so the face recogniser never gets passed an actual face.

Face detectors generally check the whole image for faces, outputting everything above a threshold, so as long as a face is present, it's getting detected.

I would suggest that you disrupt the face's shape or wear some kind facepaint to avoid the skin dection part.

I've seen discussion floating around of dazzle camouflage for the face - a sort of blend of WWI meet 80s glam rock.

This is pretty old, but seems to still get occasionally update:

https://www.cvdazzle.com/

Link is not working for me: https://imgur.com/a/foyA1

I prefer a rings of Agus type solution (RE: Freedom (part two of Daemon by Danial Suarez)