they just use the retro reflective material....

The last video shows him using a paper of reflective material inside his shirt, as the projector deflector screen is in front of the guy and is a one way mirror so we can se through it, it makes perfect sense, look at the table and you can see from which angle the image is projected. Its just a snapshotted skeleton that is projected.

"Did anybody see the latest Bond flick? The car he drove had camouflage where every point on the car was a camera and a projector. Same thing as what AG 27 is saying. "

Except that a system such as that would only work if the viewer was in a very specific, known location.

For those of you guys who think this stuff is cool, the site describing the technology seems to be adding a new video per day.

I can't say what the hell is happening in this most recent video, though...

[q]Hence the excuse for her to run around nakid.[/q] Well, it seems to be part of so much of the anime these days. Every excuse they get they rip off their clothes in some way or another. Although GitS really makes it seem more justified then some other anime movies ive seen. [q] In the original comic books, she was wearing a suit. [/q]Ah, havent read the comics, such things can be a little hard to get around here. So ive only seen the movie, although my dvd edition missed all the neat stuff my friends import had(uk import i think) with the datasheets and texts and such. Damn those movie companies for doing different editions for different markets.

Pay attention to the street pic where the truck goes by, and (toward the end) you do see the image distort momentarily as the truck passes him and he turns slightly to look at it.

29,

Note the diagram found in the link indicates a halfmirror, so the cloak, ball, brick, mirror must have a reflective properly that introduce light back into the visiable spectrum/intensity. Either by constructive interference (dunno if polarization would work), or by spectrum shifting.

The projector might not be projecting visible light, or the halfmirror is not reflecting visible light. I would have a better understanding if observer placed between the camo'ed object and halfmirror would see the optical camo.

26,

Hence the excuse for her to run around nakid. In the original comic books, she was wearing a suit.

My question is how come the projected images (on the ball, block, and mirror) didn't project on the person's hands, or the mirror handle?

Anyone figure that out? Wouldn't the other parts of the background be projected on the guy in the movie?

Did anybody see the latest Bond flick? The car he drove had camouflage where every point on the car was a camera and a projector. Same thing as what AG 27 is saying.

Supposedly the uses would be things like doctors in surgery wearing gloves that allow them to see past their own fingers as they work. Possible military application would be upper half of a vehicle showing the passing ground making satellite and spy plane recon even more difficult. I remember hearing tales of patents for other "camouflage" methods (to the effect of a camera on one side with the recorded image displayed on the other). None of these yet seems very practical -- but what technology was in its infancy?

nuclear
[q]They are named therm-optics in the movie, The main character was wearing it as a cape
it seems that it was also able to cloak thermal emission so using an infrared cam would not find it.
quite a cool system :) [/q]No matter the name it was a kind of adaptive camouflage, but yes, you are right about the name. It wasnt the main caracter that was wearing it as a cape, but one of the puppets the puppetmaster was said to have created. The same one that fired hypervelocity ammo from his submachine gun that cracked the barrel. It was also used in skin on the spider robot at the end.

The main caracter had it incorporated in the skin of her cyborg body(from megatech) and had just a veil to cover her face.

repost! oh.. sorry.. wrong website..

Originally Posted by absinthe
Also see Ghost in the Shell: Stand Alone Complex, the ongoing TV series that\'s probably the only anime series I\'ve found that I\'ve liked.

</threadjacking>

Wow... TR only hears about this now? I've been following this for some time now. In fact... I thought I got it from TR... guess not.

Well for those that aren't impressed... I don't see how you're not. Seriously... you people don't realize what's really happening.

i dont think the point would be to make a perfect camo based on background, just a "good enough" camo so that a cursory examination wouldnt expose you.

yknow, the guy wasn't just standing in front of his wall.

there was at least one movie of the guy outside. a bicyclist goes by, and you can see the guy moving behind him.

it's my opinion that this is incredibly cool. looking at the diagram of how the system works, i think that this is one of those situations where people will say "damn, why didn't *I* think of that?" because it just makes so much sense.

it does look funny right now, though. i can trick myself into "seeing through" the guy, but if i'm not trying, i'll have trouble beleiving it.

Originally Posted by nuclear
aphasia
They are named therm-optics in the movie, The main character was wearing it as a cape
it seems that it was also able to cloak thermal emission so using an infrared cam would not find it.
quite a cool system :)

[q for why the ball doesn't display an image of the persons head instead of the background behind his head,[/q] Could that the image giver sits on the back of the persons head instead of on the ball. As you must still have something as image source.

And i think the thing that it doesnt give a shine on anything other then the object in question must have something to do with the way they project at an angle. So its a damn neat thing they have done, but revolutionairy. No.

Ghost in the Shell, a superb near future Anime story where they use adaptive camouflage in cyborg bodies and some coats.
Ghost refers to what kindof amounts to the equilent of a soul.

Go see it if you havent, its quite worth it.

It is not clear if the images are visible to the naked eye. [q]The photograph was taken through a viewfinde\q] I guess it is a video effect like blue/green screen. The half-mirror and side projector also remind me of a holographic process.
You can do this yourself at one of those sticker-photo booths wearing a blue shirt - instant floating head

Arg, link doesn't work for me. Anyone else?

Ghost in the shell good anime.

I was just thinking the same thing.

Ghost in the shell?

also the projector on white thing is kinda flawed in the fact that when he's moving the ball around his head, and then later the rectangle... the white in his shirt doesn't seem to reflect any of the projection.... i've checked this quite thoroughly

and his range o movement with the ball puts it a couple times directly infront of his shirt, and the projection is easily seen on the ball

as for why the ball doesn't display an image of the persons head instead of the background behind his head, perhaps they haven't set it up to use realtime imaging yet... and can only use a stactic image (one taken before he was seated infront of the wall perhaps... asthetically an image of him 5 minutes ago being projected on the ball would seem out of place as with all his body motions most likely the image of the real him and the projected him wouldn't line up)

for some reason my spaces were all left out... suffice to say, my diagram has an X at the point of intersection between the projection and the viewer's line of sight to the object

so move the vertical line over mentally until it intersects at the X and then my diagram is what it should be

from looking over the diagrams, the projector that projects the image which will be used for camoflauge doesn't actually aim at the target, nor at the intended victim (person who the technology is supposed to fool, whatever)... but instead intersects the victims line of sight with the object to mask at a perpendicular angle...

Camoflauge Projection
|
|
|
Oject to Mask <-----------------x---------------- Viewer
|
|
V

i don't believe the projection ever points directly at the item trying to be camoflauged...

if you'd notice, in many of those pictures/movies while an item like a mirror or mechanical arm, or ball, or cube would be camoflauged... there'd be NO projection on say, the mirror's handle, or his flesh when holding the mechanical ball, etc

And the rate at which he moved the objects suggests that it isn't some trick of him and a projector moving in coordination... I downloaded the videos and viewed them quite a few times, and never once detected camoflauge "spillage"

Very neat... however still very unpractical in most cases...

right now, no real tactical use say in war or police activities (sting operations, spying)...

however, would make a real neat piece of art in a large corporations main lobby

I agree, its neat, but nothing amazing at all. What i feel is nice though is that one of the references is to Ghost in the Shell. How many here saw that anime movie. If the camouflage had worked like that, then it would be an incredible thing, but with a required projector this has very limited usability. Still, its a neat effect.

A real optical although passive camouflage has been tried with optical fibres leading the light from one side to the viewers side, but the bundle required to make it usuable from all around made that unpractical as well.

Move along, nothing to see here, move along.

I see you haven't tried what you are saying, Freon. I'd say you never put yourself in front of a projector or saw anybody doing it.

I did, and I can tell you any pale color reflects light quite well. That guy's skin color should reflect very well. BTW my projector screen in not white it's silver which is way better.

I guess he should have posted what you're saying so you see the difference but I guess he thought that was too obvious.

1st deformation: that white ball should deform the image much more
2nd reflectiveness: almost anything in that guy should reflect noticeably (from his skin to his clothes)
3rd focus: there is distance enough from he guy to the background to produce a blurry image in either of the surfaces.

7,

Because there is a white ball in front of it?

I can stand in front of any projector and do that with any white object. ANY projector. The only difference here is this guy is projecting a picture of his wall. THAT'S IT FOLKS!

If I had a projector I could do this myself in about 5 minutes. The question is "why?" as there is no practical purpose. It doesn't even work in person, because you have to have your head right next to the projector.

Sorry, but this is not news... Surprise, surprise, white objects reflect light well. That's why projector screens are, get this, white!

It's a guy standing in front of a projector. That's about it.