Invisibility cloak ( video )
 

I posted this eons ago , but because of the recent threads/articles discussing it . this is rather interesting

http://projects.star.t.u-tokyo.ac.jp...oc-okugai3.mpg

http://projects.star.t.u-tokyo.ac.jp...s/oc-wired.mpg

Not quite an invisibility cloak , but its touted as "optical camoflauge"

that's excellent! :thumbsup

I bet they work very well in the mountains and places like that. and if the person wearing it, is standing still, you would miss them.

Whoa!! That's fucking cool! How the hell does that work?

i think basically what it does it transfers what would be behind you onto the cloak.. kind of like if you had a camcorder strapped on your back then redisplayed the image onto the front of you.. ( like if you held a big screen tv in front of you and filmed what was behind you ,it would look as if you werent there

anyway, that is AWESOME!!! I am so impressed!

If they are making that stuff public, they probably already have things that are way more advanced...

Invisible bump.

2hp

heres some more videos

http://projects.star.t.u-tokyo.ac.jp...ages/bone2.mpg

http://projects.star.t.u-tokyo.ac.jp...ges/mirror.mpg

The chick with the underware is much better

Whoa those clips are darn cool

those are cool

amazing stuff... like a james bond's gadgets

what confuses me is in the one video it shows a shot of a video of him moving the film across his head and body and it appears to be like an x-ray.. well if they have shit like that why am i paying hundreds of dollars for xrays :)

Im suspecting just off the top of my head that perhaps its more of an illusion . like they cant actually see the bones and such , what they do is make an x-ray first then basically "NULL" out the body and project the xray onto the image.. still awfully cool , but not quite as amazing as it appears.

i could still think of a few cool things you could do with that though.. would be great for security.. Like instead of having a security guard standing there he would project whats behind him onto this security uniform then just stand there basically unseeen unless you stood behind him.. or walked into him..

....that's weird!!! :D

smoke n mirrors smokey.....the second clip is all projection....it appears anyway, the only part im not getting is its not on his face, but when you watch him walk around you can see the insignia on the wall flutter on his coat as if it were projected.....am i wrong?

i do lik eyour security guard idea....but then the burglars will just get the coats ;)

heh well like i said its obviously not exactly what it appears to be , but its not "just" smoke and mirrors , it was a univerity project right so unless they were just trying to get some easy grant money ( and thats not entirely impossible ) i think it has some coolness potential

The part that screamed fake for me was the xray of the head&body , but it also is what pointed out kind of the "real" idea they are trying to put forth.. its not really an invisibility cloak like the harry potter style they are trying to make now by bending light around an object its just projection but an advanced method of it..

If PETA gets wind of this idea i bet they will wrap bears and rhino's n shit in it.. I wonder how another animal would precieve it.

Oh cool, an assassination cloak
good stuff :)

this is actually fake. haven't you guys ever seen a weather man?

the x ray one seemed like a green screen act to me, not a real xray, but a green screen of a skeleton.....yes, no, maybe so?

its not fake , but yes its basically like an upgraded version of the green screen idea but different..

-------------------------------------------------------

What is Optical Camouflage?
Optical camouflage is a kind of active camouflage.

This idea is very simple. If you project background image onto the masked object, you can observe the masked object just as if it were virtually transparent.

This shows the principle of the optical camouflage using X'tal Vision. You can select camouflaged object to cover with retroreflector. Moreover, to project a stereoscopic image, the observer looks at the masking object more transparent.

Optical camouflage can be applied for a real scene. In the case of a real scene, a photograph of the scene is taken from the operator�fs viewpoint, and this photograph is projected to exactly the same place as the original. Actually, applying HMP-based optical camouflage to a real scene requires image-based rendering techniques.


M. Inami, D. Sekiguchi, S. Tachi, Le manteau transparent! (Transparent Cloak!), Brochure of Demonstration at Laval Virtual 2003, Laval Virtual 2003, France, May 13-18, 2003, (French Version), (English Version)
And you can find more detailed information at the pulication section.






@Wired NextFest2004


Publications
S. Tachi, Telexistence and Retro-reflective Projection Technology (RPT), Proceedings of the 5th Virtual Reality International Conference (VRIC2003) pp.69/1-69/9, Laval Virtual 2003, France, May 13-18, 2003 (VRIC2003.pdf(432k))
M. Inami, N. Kawakami, Y. Yanagida, T. Maeda and S. Tachi, Method and Device for Providing Information, US PAT. 6,341,869 , 2002
M. Inami, N. Kawakami, D. Sekiguchi, Y. Yanagida, T. Maeda and S. Tachi, Visuo-Haptic Display Using Head-Mounted Projector, Proceedings of IEEE Virtual Reality 2000, pp.233-240, 2000 (vr2000.pdf(350k))
References
M. Shiro, Ghost in the Shell, Kodansya, 1991
Projects of Tachi Lab.

It could be even simpler, like filming a reflection in a glass window.

Very cool, I like that 2nd video.
WG

Xrays cost 100s of dollars in the US? I'm living in Belgium right now and over here you pay a couple euros for that. (about 4 weeks ago I had some taken and I paid 3 euros).

Looks fake to me,
http://www.vce.com/bluescreen.html

Yes they do .. not sure why , maybe they do better x-rays, but i suspect that your healthcare is subsidized ( although i could be entirely wrong about that ) but even the xray=s here are subsidized somewhat

looks pretty awesome

I can't see how it could work... this is a 2D image.. how could that ever look correct from any angle? .. or am I getting something wrong here?