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Some shirts hide you from cameras, but will anyone wear them? (arstechnica.com)
164 points by pseudolus on April 10, 2020 | hide | past | favorite | 96 comments


I ordered this specific anti-human recognition hoddie, and it actually looks pretty awesome. It really only goes well with black/grey pants, though.

https://www.rageon.com/products/ensemble-7

And Adversarial Fashion's anti-ALPR backpacks are cool looking as well.

https://adversarialfashion.com/collections/bags/products/sta...

Sadly, it's definitely much easier to push out a software update than it is to replace your clothing. But that game of cat and mouse won't start until the clothing becomes more commonplace, which is very doubtful.


The mostly black backpack makes me wonder if a vantablack-covered tarp poncho would work. Since you should just be a black, featureless blob to a camera there's not much for the NN to latch onto other than outline.


The backpack works because it's not just black and it actually includes some adversarial input ("fake" license plates). A Vantablack poncho wouldn't protect you more than a regular poncho with no distinguishing patterns. The image recognition wouldn't really latch on to creases in your clothes to perform recognition. Your face would still be visible and there's nothing about solid black that further confuses the AI behind the system, there are far better adversarial examples for that.


I wonder if the green traffic lights will make you more susceptible to getting creamed by a self-driving car.


It’s going to make captcha harder


Anti-ALPR patterns really should be using diplomatic plates from the axis of evil countries for extra fun.


Welp, I know what my project will be during the self-quarantine.

https://adversarialfashion.com/pages/diy-resources


What good is an anti-ALPR pattern if you aren't, you know, a car on a road?


It's not to disguise the wearer, it's to feed junk data into any license plate reader that happens to look at you. I don't think it's really useful, but the idea is that if the systems get filled up with enough junk data, it won't be worth it to maintain the systems if they have to sort through a bunch of nonsense every time they want to search for something.


Maybe I'm missing something, but wouldn't they just do an automatic lookup against a nationwide plate db and discard ones that don't match?


How do you distinguish between ones that don't match because they're invalid or ones that don't match because the algorithm didn't properly process the image?


Also, what stops you from using real plate numbers? It's not like they're hard to collect -- unless somebody passes a law against that.


It seems like you could cause some real confusion if you lived near one of these cameras by putting a screen in your window that cycled through random plates. Especially if you run your own ALPR on the street and only use plates that have passed by before.


I wonder what the rules are about displaying license plates on your car. No doubt you're required to display the one issued to the vehicle, but what happens if you also cover the car in pictures of different ones?


For me at least, that first link has some NSFW content. (This is a courtesy notice, not a criticism.)

Specifically, it shows a pair of leggings on a woman designed to look like a naked man titled "David's Marble Legs":

https://www.rageon.com/products/davids-marble-legs?refSrc=43...


> For me at least, that first link has some NSFW content.

> Specifically, it shows a pair of leggings on a woman designed to look like a naked man titled "David's Marble Legs":

But how is that NSFW? This is one of the most famous sculptures in western art. Everybody has seen it. I had a photo of the David sculpture in the cover of a history book when I was 11, given by our school. I find it very disturbing, even creepy, that somebody may honestly think that this image is NSFW.


imagine you happen to open this page at work while someone walks past your desk. if they say "hey, are you looking at penises at work?" you have the opportunity to explain "no, actually this is a representation of one of the greatest works of western art". more often than not, they will just keep walking and not ask for an explanation. do you really want to be the person they remember this way?

some people just don't want to open a picture of a penis at work (or be surprised by one at home), no matter how artistic. I don't find this disturbing.


Oh geez, sorry about that! I can't edit my post to tag it NSFW, but thankfully that product is at the very bottom of the page.


Is Michelangelo actually NSFW?

Is anyone actually at work anymore?


Apparently there's a male-clothing version too, but either as underwear or swim trunks: (same NSFW level, sans any model) https://www.rageon.com/products/david-underwear-1?refSrc=487...


I think they're hysterically funny, though I'm having trouble imagining a use case for the leggings.

Clubbing? Throw on a long coat to cover it until you get to the club, then wander around making provocative ironic social commentary without saying a word.

That's all that comes to mind (and isn't an option currently, due to the pandemic).


> Sadly, it's definitely much easier to push out a software update than it is to replace your clothing.

Depends on the release process.


This is futile. The cat is out of the bag. There is no technological counter to AI + ubiquitous sensor networks.

There are AI systems out there that can identify you by gait. Possibly already in your phone, ostensibly to help detect if the phone is carried by someone else. Straightforward to connect to the 24/7 video surveillance network that is built all around us: ring, self-driving cars/drones that double as corporate spies, video checkout, etc.

Furthermore, radars are coming to your phone in the near future: https://atap.google.com/soli. There is no way to hide from such radars picking up everything that moves: your gait, your breath, your heartbeat. Oh, and the gait, breath and heartbeat of anyone near you, whether they agreed to the 500 pages EULA surrendering their privacy or not.


Hi fellow jaded cynic!

I can’t disagree with anything in your post, but I would add that there always opportunities to be a pain in the ass.

Maybe not all systems can be toppled, but most can certainly be hacked, abused, slowed down, obscured, damaged, re-purposed, stolen, rebooted, copied, exposed, hidden, rendered obsolete, improved, deleted, etc.

I see your defeatism and raise you a giant middle finger!


I agree. Messing with the system can be fun even if ultimately futile. Also the fact that AI can sometimes be stupid can sometimes lead to good trading opportunities.


The license plate dress has the added benefit that buggy self driving cars may actually notice the pedestrian wearing it.


You might be able to take your car out for a walk if the adaptive cruise will latch onto and follow your shirt plate! It could be like having a leash-trained 3500 lbs steel dog - just hope it doesn't see any squirrels. Heel, Tesla!


Honestly, I'd wear that dress easily, even for regular outings, not just for hiding from cameras. Those hoodies, though, maybe I'm an old fart but they're a bit too "abstract". Sadly, those seem like the most effective option right now. I read the Adversarial Patch article [0] and it pretty much demonstrated similar patterns.

Trouble is, if these get widespread enough - they won't look out of place but the moment they become widespread is the moment updates get pushed to make them obsolete. It's an unescapable situation.

[0]: https://arxiv.org/abs/1712.09665


> Trouble is, if these get widespread enough - they won't look out of place but the moment they become widespread is the moment updates get pushed to make them obsolete. It's an unescapable situation.

Did you just say recurring revenue (for the clothing makers)?


Getting strong William Gibson/Zero History vibes from that article.

If you haven’t read the book (written over a decade ago), a major plot point revolves around a T-shirt that renders the wearer invisible to CCTV cameras.


That was the first thing i thought of too


I seriously hope this begins to become a fashion trend in the near future. I don't see why one of the more out-there fashion designers wouldn't pick it up.


As soon as it becomes mainstream models will be trained for it.


Na, just make it illegal. Governments are increasingly eroding people's freedoms. Let's remove another one, and force everyone to wear approved and regulated clothing. You know, for your own safety.


Related thought, on hiding from cameras and overzealous public identification systems...

Most western nations are now, temporarily, accepting face coverings as daily attire in the age of COVID-19. Plenty of asian and muslim nations did previously, for cultural and health reasons.

Culturally acceptable anonymity, courtesy of the pandemic. Maybe this isn't temporary if the fear of future viral spreads takes root in culture.


I wonder how accurate gait recognition technology will become.


neat if it worked, but article specifically calls out that Chinese (and other) systems have been trained on medical-masked datasets :-/


Yes, several Chinese companies claim to do reliable identification of masked faces.[1] I find that pretty amazing but time will tell.

[1] https://thenextweb.com/neural/2020/03/10/masks-wont-make-you...


The thing is, they won’t work forever or even for very long. Even makeup will eventually be thwarted.


when they're generated digitally, it's surprisingly hard to get good robustness against adversarial examples, and people have been working on it for a while. of course you can train to stop any specific input, but then new ones can be created for the newly-trained network.

there are techniques that can prevent this, but you pay a real price in overall performance, which may or may not be worth it.

of course it's harder to make physical objects work, but if somebody did manage to make a method for physical adversarial attacks that worked reliably, I would guess you'd run into the same problems. it's not at all clear that the endgame is that we can easily stop these attacks.


The issue with adversarial examples is defending against a wide class of examples, not a few specific images.

Clothes change much slower than software updates, and defending against a few adversarial examples is relatively easy, so this shouldn't be a problem.


>Clothes change much slower than software updates,

I change my clothes at least once a day and add to my wardrobe on a ~weekly to ~monthly basis. Having been party to large system upgrades at even a reasonably competent company, I'd be shocked to find out that any surveillance system anywhere is matching that velocity.


> The issue with adversarial examples is defending against a wide class of examples, not a few specific images.

So who says it has to be a few specific images? They could auto-generate a different selection to choose from for each purchaser and then print to order. Every individual article of clothing could be unique.


NN updates can take a long time to be trained, verified, and deployed. Especially if your talking a wide scale network of cameras.

Some of these approaches are 7+ years old and still work.


long term storage overcomes the deficiencies in todays software

As soon as they update the software, they run it over the stored video and investigate the differences. When they identify particular evasion techniques, they can flag up all instances and see what was done under their cover.


I remember seeing an article about how ICP “juggalo” makeup fools some facial recognition software, I wonder if that has been solved yet?


The juggalos are evolving. They have superior technology. We thought we'd finally cracked the code, but it was too late: the enemy was already within the gates. Our hopes were doused in a shower of Faygo, and the machine lay sizzling its last breath in the putrid foam.


CV dazzle has been around for at least 7 years; an eternity in this era of CV growth. It still works. What makes you believe it will be thwarted?


I'm certainly no expert in CV, but having worked in government/law enforcement tech previously (pre-Snowden days) I have full confidence that if people started actually using CV Dazzle to evade detection, they would work on breaking through it. Generally speaking those systems only receive features that are actually problems the users are facing. Once they identify the problem they can throw nearly unlimited amounts of money at it, and they will win.

This is why I'm focusing my efforts on political solutions to protect our privacy, rather than technical solutions. That's not to say I don't think technical solutions are important, because they absolutely are, but even things like encryption could be made illegal politically if they want to. Thus politics is the most important arena for privacy advocates IMHO.


The argument that we need political solutions originally came from a time when technology people weren't paying attention to politics at all, and of course then you get this:

https://xkcd.com/538/

But it feels like it has gone the other way now, to the point that people dismiss potentially helpful technical solutions because "what really matters is politics" even though in reality you need both.

If the government bans privacy technologies then it's hard to use them, but if nobody develops or uses them to begin with then you don't have them either.

And for some people the government in question isn't ours, it's a foreign authoritarian government where "policy solutions" are just not going to happen and the only option available is technology. It's a lot easier to develop that technology in less authoritarian countries, which means we have a responsibility to do it, because if they have to do it the cost of a mistake is a lot higher.


Agree with you completely. If I take my previous statement further to "don't even bother holing up as insurgents because the government will win the battle" then it goes to a place I don't agree with (I think there's plenty of evidence that the "little guy" can win against big governments. Afghanistan is a great example).

So I really should re-phrase my position to clarify that I meant in the United States, but also even in the US I do think the technological solutions are important and should be developed. The important point I want to stress is that I don't think we should ever disregard the political war because of technological confidence in our ability to thwart the authoritarians. Both politics and technology are both critical pieces. If we lose on either front, we lose.


And the issue now is that as much as you might blend in to the computer, if you're going out and about with CV dazzle on you're going to attract a lot of scrutiny from actual people.

Like this: https://xkcd.com/1105/


As with ad blocking, no one really cares until it becomes widespread. CV doesn't account for dazzle because no one's really using it; there are more immediate problems to solve of higher utility.

There's also the non-technical approaches, like https://en.wikipedia.org/wiki/Anti-mask_law.


Nobody uses is so it hasn't been anything worth thwarting.


"Is that you hiding from the cameras, or are you just wearing an ugly shirt?"


“What’s that?” she asked. “The ugliest T-shirt in the world,” he said, and kissed her cheek. “The Bollards will be disappointed,” she said, coming in and closing the door. “I thought they’d had me sleeping in that.” “So ugly that digital cameras forget they’ve seen it.” “Cameras can see it. The surveillance cameras can all see it, but then they forget they’ve seen it.” “Why?” “Because their architecture tells them to forget it, and anyone who’s wearing it as well. They forget the figure wearing the ugly T-shirt. Forget the head atop it, the legs below, feet, arms, hands. It compels erasure. That which the camera sees, bearing the sigil, it deletes from the recalled image. Though only if you ask it to show you the image. So there’s no suspicious busy-ness to be noticed. If you ask for June 7, camera 53, it retrieves what it saw. In the act of retrieval, the sigil, and the human form bearing it, cease to be represented. By virtue of deep architecture. Gentlemen’s agreement."

William Gibson, Zero History (2010)


That sounds more realistic than one might expect. Most printers will apparently reject printing of patterns containing the EURion pattern [1], commonly found on paper cash. Not a far stretch that some facial recognition tech might contain deliberate hidden patterns in the future.

[1]: https://en.wikipedia.org/wiki/EURion_constellation


Obviously this is going to turn into one of those back-and-forth wars of more effective adversarial clothing designs versus improved detection algorithms. What I really wonder is, which one comes out on top in the end, or at least most of the time? Will designs and/or fashions get weird and effective enough that it just isn't practical to recognize people in general in public with computerized algorithms? Or will the algorithms win, with these being 95% ineffective and also resulting in drastically more attention from ordinary people and any human authorities who happen to be watching?


One of the more memorable stories I read as a child was "A Bowl of Biskies Makes a Growing Boy" by Raymond F. Jones. In it, the intelligent, scientific teen with an aptitude for chemistry discovers the government is lacing breakfast cereals with drugs to quell the populace.

The boy discovers it, weans himself off the drug, and then eats mostly from the health food store to avoid it. But the government uses that store to round up anyone who discovers the truth, because it's a sign plain as day you have.

Stuff like this makes me think of that story. If anything, a motivated government could just train policeman on what patterns or clothing break camera recognition and stop people based on it. Or if you have an obscured plate, they don't need the camera if it's the law not to have it.

This really only works if we have pervasive but more or less harmless surveillance by benign or robotic actors. But this is kind of like that health food store in that all the technical solutions in the world can't stop a motivated agent. You have to eat somewhere, and you have to exist in more than just image recognition databases.


I like the license plate dress featured in the article. A simpler point to bear in mind that even after the immediate pandemic emergency is over many people will need to continue to wear a mask in public. Doing errands/outdoor exercise/volunteer work in public while masked is an enjoyable increase of freedom and privacy.


Privacy in meatspace is dead. Totally dead. Hopeless. Never coming back, unless technological society crashes.

Privacy online is all that remains. In meatspace, I strive only to be unremarkable. In my case, just a tired old man. Nothing to see here.

My cover story, I suppose, is using a VPN service to hide my porn addiction.

Edit: I recommend Vinge's True Names.


I was hoping for something that thwarted the processing in the CCD (chip that captures light in digital cameras AFAIK) instead of something that just thwarts the recognition algorithms.

Of course, if the camera still captures a perfect image, that image or video is always around to be processed at a later date.


CCD cameras haven't been the preferred camera sensor for more than a decade at this point. The entire industry moved to CMOS a long time ago. You might find CCDs in use today in specific scenarios like where you need global shutters, but even then, you can buy CMOS sensors with global shutters that outperform those CCDs.


Of course, completely blanked on that. Haven't been looking at that tech in quite a while. Thanks for the correction.


CCDs are good for those cases where SNR is vastly preferred over readout speed. Otherwise it's pretty clearly CMOS.


Tangential topic.

Are masks of the type worn to protect against covid-19 effective against being identified on camera? Because this seems like an amazing excuse (in terms of a silver lining on a very dark cloud) for facemasks as 'anonymity wear' to become mainstream.


Yes/No. Here, probably. Elsewhere, no. In China, their facial recognition has got so good that they can track people even with face masks on: https://arstechnica.com/tech-policy/2020/03/how-china-built-...


Also if you add gait recognition, you can add as many masks and hoodies as you want, but you will not escape recognition.


Would wearing some kind of full length cloak or burqa-sequence garment that obscures a lot of movement be a plausible counter? Obviously they can’t obscure everything about your gait, but I imagine they’d take away enough useful information to make it significantly harder.


Probably, but at that point you'd stand out to humans! Imagine being at an airport...


Standing out to humans is plausibly less of am issue than being monitored and recorded and your data stored in perpetuity.

Humans will forget about you, data recorded about you will be stored an reused and abused for who knows how long.


Good point. I was thinking that in a case of an oppressive gov you wouldn't be able to wear these things anyway.


For now, but if everyone was wearing one it could work.


Wouldn’t wearing something like this just make you much more of a target? Maybe I don’t understand these things well, but it seems if I were trying to track people I’d make the very small minority wearing something like this a target group.

Another way of thinking about it, if I’m the only person in my community wearing these weird patterns, aren’t I even more identifiable than I would be otherwise?


In China police are sent notifciations if undesireable people are seen on camera in their jurisdictioin.

I imagine for those people the ability to move around undetected would be very much worth the garish pattern.

I also question just whether the average policeman would be able to tell whether clothing was designed to be untrackable


Only to humans.


Relevant XKCD: https://xkcd.com/1105/



Will anyone wear it while crossing the street with Tesla's on the road?


Finally I have an excuse to wear my ugly Christmas sweaters all year long


If I could pixelate my own skin on a whim I wouldn’t worry about the shirt. Unconfortably I think eventually we’ll become fully traceable and privacy will be a thing of the past.


What about an incredibly bright set of IR lights? Surely that would cause most cameras (at least IR ones) to massively overexpose. It might only work at night though.


You are correct that it would only work at night since a majority of cameras out there have IR Cut Filters for daylight colour accuracy.

Not to mention the safety risks of strapping IR LEDs that are that bright at other people's eye level.


To me, this is the best way to go. I've seen the hats with the UV LEDS embedded in the brim, but why not around the collar of a shirt?. The only side effect I see is UV light directly in the face. Not sure if the UV wavelengths/intensity can be low enough to blind a camera to not cause odd tan lines or worse?


UV LEDs probably won't do much against cameras. You want NIR, around 700-800nm. Security cameras are generally sensitive to it, unlike UV.


That's even better. IR won't cause skin cancer.

Either way, blinding the camera with lights that are invisible to other people unlike these outfits would be much more effective. You can still be subversive without advertising it to anyone. If you're recruiting, then sure, where these outfits. If you actually want to not be seen by the cameras, make the cameras unable to see.


The cameras won't recognize you when you literally catch on fire.


The second image in the article looks like the result of some machine learning output. Something like the result of the Deep Dreaming app.


Sorry I couldn't read the article, could someone post where to buy those shirts, I'll use them for sure.


https://www.rageon.com/a/users/invisibilitycloak

if you read the article you'd see that they only work sometimes though.



I could see this being a sub plot in a modern day Seinfeld.

Kramer buys one - or sells them? Things go sideways.


amusingly I've seen a couple of people out recently wearing anti-cv masks. I guess you wear what you've already purchased, but it's most interesting that I've seen more than one.


I’ll buy five!!


Wear a fking mask.

The claim Hanwang's software works is dubious at best. And they also admit with sunglasses it totally fails.

https://www.reuters.com/article/us-health-coronavirus-facial...





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