I was going to try this with a reflective tape kind of thing.  That way it could be just a sticker stuck to the bottom of anything, like a camera or phone.  I don’t know how much of a difference in reflection it would have though.

http://www.cs.cmu.edu/~johnny/projects/thesis/

^ The last video is awesome.

gally - 28 July 2008 02:00 AM

http://www.cs.cmu.edu/~johnny/projects/thesis/

^ The last video is awesome.

I’ve seen this one. But there is a Head tracking video with the Wiimote and goggles fitted with IR leds which I found more impressive than all.

I’ve seen this working for real, so the video don’t impress me much anymore Some people are porting this to compiz fusion btw :http://wiki.compiz-fusion.org/Plugins/Wiitrack
Another Wiimote hack i like is Oliver’s Kreylos’s work with 2 wiimotes to get 6DOF tracking :http://www.youtube.com/watch?v=KyvIlKSA0BA

Camera pose estimation algorithm on Smartphone

I’m posting this largely for the music.

link: http://www.youtube.com/watch?v=UGBHrzEUxhk

Another augmented reality stuff that impressed me.
For those who never seem these kind of things, it’s done via a tool called arToolKit

The problem with arToolKit is that it is unreliable and jumpy (as seen in all videos)
It can sporadicly scale to unrealistic values and change orientation momentarily.