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fidotron 2 hours ago [-]
If this worked with IR, and so non visible, it might be even more useful.
Great idea though.
baking 1 hours ago [-]
But then you would need an IR camera instead of using the phone's camera. An IR camera should be able to find some hidden cameras passively by detecting a heat source.
hammock 55 minutes ago [-]
Can’t phone cameras pick up IR?
HnUser12 25 minutes ago [-]
I’d think so. My iPhone can see my remote’s IR.
happyopossum 8 minutes ago [-]
That was true years ago, but I haven't been able to use an iPhone camera to pick up an IR signal in a long time. Just tested it to be sure they hadn't reverted to an unfiltered lens (17 pro) and nope, no IR visible.
lightedman 53 minutes ago [-]
Depends on how cheap you go - most of the cheap ones that take images where the blacks look grey likely do not have an IR filter on them. Most quality phones will use a camera with IR filters on them - blacks look like blacks.
IshKebab 1 hours ago [-]
Why would that be more useful?
evilduck 1 hours ago [-]
Perhaps to avoid tipping off the entity recording you by blasting their hidden cameras with bright lights. Granted, the PoC device in the article is not exactly subtly looking, but if you could turn it into a sleek device it would be more useful. Not playing your hand while you're under surveillance lets you control the information they're receiving.
Though the bigger issue with my theory is that while most cell phone and webcam devices have IR filters, many surveillance cameras intentionally do not.
dylan604 32 minutes ago [-]
If you're being surveilled in a way that you don't want to tip the observers is one thing, but if you're in an AirBnB type place, fuck 'em. I'd even be fine with running some lasers in the place that ruins the sensor.
expedition32 4 minutes ago [-]
I'm an adult male so I don't care if someone wants to record my dong but this is very helpful for families with kids.
rgj 38 minutes ago [-]
Unless the hidden camera has IR capabilities.
brunoborges 2 hours ago [-]
I wonder if it works with smart glasses.
thesuitonym 1 hours ago [-]
You don't need this to detect smart glasses, they're very obvious.
stronglikedan 28 minutes ago [-]
For now, but there's really no point in detecting them anyway, since there are plenty of truly concealed options for those that really want to be pervs.
doodlebugging 48 minutes ago [-]
Proctologists agree on this one thing that smart glasses can never conceal.
Yeah I don’t think this will be effective, cameras can be put in certain angles that it can see with being seen, or how police do it, entirely behind clothes or similar fabric where it can see through and identify but not seen even if you’re looking straight at it.
Great idea though.
Though the bigger issue with my theory is that while most cell phone and webcam devices have IR filters, many surveillance cameras intentionally do not.
https://people.csail.mit.edu/mrub/VisualMic/