I’m interested in how they created this table…

http://www.artificialduck.net/index.php?filter=WORK&selected=1
Click on Floating images, then read the description…

They use glass as the surface, which is something I’d like to do.
The great thing about it is that the entire surface is glass and they don’t have anything on the peaking over, like lasers.  Any ideas?

I’d like to create a flat surface, such as this, using glass, only I’d like to use LCD monitor’s instead of a projector…

What do you guys think?

to have no peaking over like lasers, go with Diffused Illumination. Then you can use glass as well and an LCD monitor.

But the question still is how many IR LEDS does it take to get a Rear DI LCD setup working?  Ive tried 75, and didnt get anything no matter what I adjusted...?

Lots of people use IR Yard illuminators, like these, for DI tables.  I tried DI with 84 LEDs, and it never worked.

http://cgi.ebay.com/2x-CCTV-140-LED-IR-Infrared-Camera-Illuminator-w-Power_W0QQitemZ310100164383QQcmdZViewItem

Yeah, I know, but then you get crazy hot spots, unless you diffuse or bounce them off your walls...Im going to prob try that on my next table

Hey guys, sorry for the late reply. The floating images installation has infrared light under the ceiling and cameras under the glas surface. This way you get a pretty good shape of the entire arm, when it howers shortly above the suface. Crazy spots where not really a probelem.

However we wrote a costom software, to track down the finger tip of each arm.

I hope this is helpfull in a way…

it looks very much like the i-bar, but with way cooler visuals!

http://www.i-bar.ch/info/
I think i-bar worked without infrared, and just tracked shadows in the visible light spectrum, like cerupcat’s mtmini does.