Replying to @⁨Tylerdurdon@lemmy.world⁩

From this bit in the article:

The pattern does not stop a camera from recording. Instead, it is designed to prevent the software connected to the camera from recognizing what it sees. A person or car wearing the pattern would still appear in the footage, but the detection system may not flag it as a person or vehicle.

I wonder if these systems won’t “notice” and record the license plate on its own if they don’t think there’s a vehicle present.

Replying to @⁨Nobody_Special@piefed.social⁩

This approach only works in daylight with cameras that rely on colour only. Infrared spectrum cameras such as what Australia uses on mobile phone traffic cameras are much harder to deal with. Patterns don’t cut it and it’s a huge part of military research into hiding vehicles from infrared spotters.

Disabling the cameras entirely is much more effective.

Replying to an earlier post

So if we focus on thermal IR: shiny metal surfaces hardly emit or absorb it. A black surface emits and absorbs as much as possible. We quantify this via the emissivity (and also reflectivity, shiny metal is a mirror). Emissivity of 1 = theoretical maximum of a prefect absorber/emitter (both are directly linked), everyday stuff like skin or wood is about 0.95, shiny metal surfaces roughly 0.1, a rusty or painted surface again about 0.95.

You only emit and absorb the same in thermal equilibrium. If the surface is hotter, it emits more. If it is colder, it absorbs more.

Replying to @⁨Eheran@lemmy.world⁩

So with that last part, I get that in theory, but practically, you can only really absorb IR temporarily, right? Because it all gets released again as heat eventually. Like, say you have a mostly inert object, that isn’t creating any meaningful amount of heat. If you hit that object with 10 joules of thermal IR, over time, wouldn’t nearly all of that energy be either reflected or emitted off it as IR radiation?

Replying to @⁨CmdrShepard49@sh.itjust.works⁩

Car enthusiasts seem to get away with alternate plates around me. Sometimes plates from the manufacturer country, sometimes decorative plates resembling the local jurisdiction but being the car’s name or year/model. Either there’s nothing specifically against additional plates that are clearly “novelty” items or my local police just don’t care. Now, if they’re legitimate government-made plates, I’d bet you’d run into issues.

I’m sure you could add something that expands your plate info, but I can’t see a solution that keeps your true plate visible (to avoid direct police activity) without also keeping your actual plate number as part of the character string associated with your vehicle. I do recall reflective letters being sold at one point to defeat standard speed/light cameras (plate is reflective by default, characters are not). But, still, with all the extra details the system logs with y/m/m/c, stickers, attachments, and damage, I regrettably don’t see this being especially effective. But, I suppose, it has a chance to keep your unique vehicle unassociated with government records… For now.

Replying to @⁨AgentSeven@lemmy.zip⁩

The figures don’t mean insurers rejected nearly half of otherwise valid claims. Claims can close without payment because another insurer covered the loss, a customer withdrew the claim, damages fell below the deductible or the loss wasn’t covered by the policy.

You can’t just say this shit and then just dismiss it:

Still, the increase suggests motorists face greater scrutiny when seeking compensation for some of the most complicated and costly types of auto claims.