It's an interesting idea, but only works on a subset of surveillance cameras. It's possible to detect almost any digital image sensor, and in fact there are commercial products available to do this - for example http://www.jaycar.com.au/productView.asp?ID=QC3506 (I don't know how good they are!)

They won't work on film cameras though.

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The duration of this video has been updated from unknown to 1:29 - length declared by oritteropo.

The beginning of Jake Gallows' face scrambler. 85 years to go!

I've been thinking along these lines myself, although my idea was more like an array of superbright IR LEDS on a hat, to dazzle the cameras and make it impossible to discern the wearer's face.

AKA, the flash-mask from Almost Human.

To me this is step one of the image randomizer from A Scanner Darkly. Me want.

Id start walking around with an infrared beam emitter at this point just to watch people twitch then.

Tags for this video have been changed from 'armor, nsa, big brother' to 'armor, nsa, big brother, surveillance spaulder' - edited by xxovercastxx

How is it armor? All it does is give you a knee-jerk reaction.

I was expecting/hoping that it would blast a massive amount of infrared-visible light or something to blind the camera to the wearer's face or something.

I agree with rebuilder and lucky760, it should do more than alert you to it. It's not hard to bathe your identifying features in so much light that the camera would just see "white".