• daannii@lemmy.world
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    3 days ago

    Razzle dazzle camouflage!

    I’m genuinely surprised so many people are familiar with this.

    It’s something talked about in perception courses/classes.

    The lines make it difficult for humans and machines to accurately gauge depth perception.

    For humans it’s related to mach bands. And the way lateral inhibition works.

    https://en.wikipedia.org/wiki/Mach_bands https://en.wikipedia.org/w/index.php?title=Lateral_inhibition&wprov=rarw1

    • BarneyPiccolo@lemmy.today
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      2 days ago

      I’m genuinely surprised so many people are familiar with this.

      It’s the Internet. By now, a lot of people have seen photos of those striped WWII ships.

      • BarneyPiccolo@lemmy.today
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        2 days ago

        Maybe if the stripes were across your face, nobody would notice you. I think the diagonal stripes would make your face look less fat.

        • lightnsfw@reddthat.com
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          2 days ago

          It’s not about not getting noticed. The idea would be to keep them from analyzing footage of you to determine your identity.

          • BarneyPiccolo@lemmy.today
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            2 days ago

            What exactly are the cameras scanning for? Is it just measurements between specific points? It would probably work pretty well for that.

            • daannii@lemmy.world
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              2 days ago

              Yes for the face they measure your iris and sclera and the distance between your eyes. They compute a ratio output and use that. If your nose and mouth are visible they also create ratios for those. Distance and hight x length . By modifying these points, the ratios are poisoned.

              For movement gait identification. They use stride and leg lengths. (Thighs and calf ratios). Speed. Overall height. And where legs start (,hip). They make ratio measurements. But that’s not as useful as it is for face. Not as accurate because of clothing.

              They use something more like motion capture. You ever seen videos of people in black skin suits with ping pong balls glued to it. ? They use this in games and cgi. They track movement with the ping pong balls and then map it on a computer to the CGI model.

              This is what is basically used for gait. tracking.

              But. Maybe you are thinking. “Holdon. If they need to use the ping pong balls in studios to capture motion, how can they do it from a video of someone walking down the street?”

              Well. Firstly it’s not nearly as good as the suit/ball method done in a studio.

              But it doesn’t have to be to create a high enough resolution of the movements to create a signature .

              That said. Unlike facial recognition, it’s current ability to identify someone is less accurate and they can’t just run it through a big database. Instead they use other information like cell phone pings to first create a list of possible identities.

              As you can guess. That still means there is huge amounts of error.

              There are huge amounts of error in facial recognition too. They just downplay it.

              But it’s not nearly as good as they want you and juries/judges to think.

              Anywho. This is why the dazzle camouflage is specifically useful for gait recognition poisoning.

              The multiple high contrast bars of black and white confuse the software . The software cannot find the actual outline of the person vs the background. Especially in a video from afar. It poisons the data.

              Even modern day equipment has low accuracy determining the distance and specific location of things with this camouflage.

      • daannii@lemmy.world
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        2 days ago

        So the movement gait tracking would likely be impacted by this. Almost certainly. Since it heavily relies on leg movements and stride distance, even wearing a pair of dazzle pants with a regular shirt could, in theory, do a decent job.

        But not sure if there is any research on it. I’ll have to look into this.

        As for painting the face in this pattern. It’s less likely to work. Because facial recognition looks for specific feature ratios and ignores the rest. (However wearing a mesh scarf covering the face (no eye holes,) with the pattern, would be successful). But any mesh pattern would do this.

        Those geometric artistic face makeup guides you see are worthless. There is actual research on that.

        They don’t work.

        But what does work is altering the ratios of your eyes. Because that’s what facial recognition software mostly uses.

        1. Wear sunglasses that also block infrared. Easiest.

        2. Wear colored contact lenses that expand the size of your iris. Quite a lot do. Especially costume ones. Average iris is around 9-11mm. Costume colored lenses range from 13-15mm. You can even get some that completely cover the whites of the eyes. Tho I hear they are uncomfortable.

        3. Use makeup tricks to make your eyes look longer or taller. There are anime makeup tutorials that do just that.

        4. Add age lines. Research shows that older faces and faces with age lines added with paint/makeup , really screw up recognition.

        5. Be black. Recognition software has a lot of false matches for African Americans. Especially African American women.

        • BarneyPiccolo@lemmy.today
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          2 days ago

          We had a bank robbery on my town a while back, a guy with a hoodie, so it was tough to get a good look at his face.

          They finally figured out that he was wearing a new type of mask made out of black stretchy material, with a face screen printed on the front of it, mostly celebrities. When put on, and disguised with a hoodie, it seems like it could fool facial rec pretty easily.

          Banks be wondering how they keep getting robbed by Kobe Bryant. It would be a good thing to wear to a potentially violent rally.

          • daannii@lemmy.world
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            2 days ago

            Also I just had an idea. Jncos. Y’all remember those big ass wide pants?

            I bet it’s pretty difficult for accurate gait measurements to be taken from pants that swim around you.
            Be like wearing a big fluffy skirt.

            We could bring back jncos!

            Think of the pocket space! Don’t you miss being able to carry a small laptop in your back pocket? I do.

            Add a dazzle pattern on them and you are basically invisible.

          • daannii@lemmy.world
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            2 days ago

            Yeah I’ve seen those and they certainly would.

            Get yourself a Elon Musk one to wear for any mayhem activities.

            Pdiddy

            Epstein

            Ghislaine Maxwell

            Love to get one of kkkaroline

            Pam bondi

            Steve Miller.

            Mike johnson.

            Have your pick

            Kinda like how the Boston tea party did by dressing up as natives except without the racism.

            It’s not a bad tactic.

            • BarneyPiccolo@lemmy.today
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              1 day ago

              Kinda like how the Boston tea party did by dressing up as natives except without the racism.

              Since you brought up racism: The point is to keep the cops from identifying you with facial rec, so doesn’t it make sense for a white person to wear a mask of a black person, and vice versa? Or is it bad to fool the cops into blaming a black person for a white person’s crimes? What if the mask is of a black celebrity? Nobody would believe that it was really that celebrity anyway.

              Or maybe a white person should just wear a white person mask.

              • daannii@lemmy.world
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                22 hours ago

                Since black people are targeted in our country, not unlike the natives, maybe best to refrain from encouraging racial profiling and Black crime stereotypes.

                Idk. Ask a black person what their opinion is. Im white so I can’t say for sure.

                I think it’s fair to say that the original Boston tea party wasn’t just worried about being identified. They could have just wore a mask or something.

                They specifically intended to put the heat on natives to protect their own ass. Which is pretty fucked up.

                Innocent Natives possibly died over their little stunt.

                We should make sure that if there is a connection to any group, it’s the group that deserves it.

                Gop criminals, Nazis, and the like are good candidates.

                • BarneyPiccolo@lemmy.today
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                  21 hours ago

                  I doubt the Colonists really thought it was Indians doing the Tea Party. I’ve never heard of the authorities seriously considering the possibility that the incident was caused by Indians, who would have had a difficult time making their way as an armed group, all the way through Boston into the harbor, and back out again.

                  It would have been pretty clear by their clothing that they were Colonists, I doubt their disguises went much beyond some face paint and some Indian-style whooping. It was probably just more a matter of disguising themselves, than really putting the blame on the Indians.

                  Besides, what would be the Indians’ motivation to come in to Boston harbor and destroy the tea? It was the Colonists that had the problem with the Tea tax, the Indians didn’t give a fuck.

                  • daannii@lemmy.world
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                    10 hours ago

                    I think people will use any excuse , even a flimsy obvious illusion of guilt, to harm a group they hate.

                    I mean just recently, every time there is a shooting, the media immediately tries to blame lefties. And then they use that to excuse ramping up violence against the left.

                    Even tho it’s clear to everyone else the right are 90% of the time, the perp. Cause they promote violence.

                    Also. Just like police violence on minorities. The news often, at present and historically, does not report on hate crimes if the person(s) getting harmed are a minority that is devalued in their society.

                    I mean I’m not saying 100% , natives were harmed from the tea party’s little costume charade. But they could have been. I think it’s reasonable to assume if it did happen, it wasn’t reported.

                    I am saying tho. They didn’t choose to dress up as natives purely for camouflage.

                    They absolutely wanted to put the heat on a group that was vulnerable and already disliked. To reduce chances of them being held accountable.

                    So. Racism.

                    They could have dressed up in Venetian costumes. Or just wore face coverings . Or dressed as women.

                    They choose natives because they used them as a scapegoat.