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lead textures
Get Xray pattern, use data to compute wanted pattern, spray paint lead wallpaper. | |
Any reduction of n dimensions to a lower n-1 dimensions loses information. The n-1 is a simplification/generalisation of n.
Using this, an X-ray machine reduces 3D density into an xy density 2D picture, If the 2D visual picture has a filter, what really is there can be warped, by lead pointillism,
into something else.
What if a Xray was taken of an item, in the most probable orientation, and this data was then processed to give another visual result. Computation of tensors is pretty clever these days using workstation graphics cards.
The filter that the computation would spit out would be the spray pattern of lead to be placed on a wallpaper. The wallpaper to be placed in the plane of probable 2D Xray processing.
To all intensive purposes. the Xray would look like the thing that it is wanted to look like rather than what it actually is.
Of course six wallpapers could be used, but to simulate all cubic views as one entity this would take some serious FLOPS.
And then again, angular staging could be used.
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//six wallpapers could be used, but to simulate all cubic views// That would only work for six possible combinations of plate and source. At which point unless you have identified the six positions, why not stick with one? |
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Is the source inside, or outside? Or either side? There are parralax issues to consider depending on either which way. |
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Think how a border officer places an item on the conveyor belt. |
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Are we trying to conceal an object from an x- ray machine by
hiding it behind the leaden silhouette of a larger object? |
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I think so - or maybe adding lead in a certain
pattern to an object to make it resemble another
object; e.g. to make the gun in your luggage look
like a typewriter. I'm not sure it would work; you'd
need to be ready to answer the question "Why have you
got a lead typewriter in your luggage that looks a
bit like a gun?".
Anyway, it's got "intensive
purposes". |
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//Why have you got a lead typewriter in your luggage that looks a bit like a gun?"// Well officer, you see, I found these lovely offcuts of wallpaper in a charity shop and I thought, "yes! This will be very nice for lining my gun case... sorry my suit case. Yes, and then I put all kinds of bits and bobs into the S-U-I-T-case for the journey home. They all seem to have fallen out along the way and no I don't know who might have put this metal thing in there instead. Do you think it is a gun? I have never seen a real gun before. Can I touch it? |
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The wallpaper has to be good enough to fool the officer into thinking the Xrayed item is what the declaration says it is. True, once opened, the con is up. |
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Patterning high energy is still an important ability. |
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When you talk about "patterning" the high energy, do you just
mean selectively blocking it, or is there cleverer stuff going on
here involving, say, interference patterns? |
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Excuse me a moment while I go and tenderise my brain meats. |
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... So ... are you using lead dots to diffract the x- rays, somehow? |
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Lead dots to block Xrays. The wallpaper + item doesn't internally look like item. |
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Can you, perhaps, repost this without the vague handwaving
and jargon, in order to have it make more sense? |
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Nope, can't hand a criminal illusion on a lead wallpapered plate. |
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