Multitouch display, build your own: the video of my first test

Probably you already saw the page called Multitouch Display. which is in the Projects section of this site.
Probably you were just scrolling it trying to figure out what this bunch of LEDs, wires and plexiglas are used for.
Probably you perfectly understood what that page was talking about but you thought that it can't work.
In every case, I was finally able to upload a video that I recorded the first week of August, it is the video of the first test of my Multitouch Display!

Here we go:



Please excuse me for the poor quality of the video but my camcorder is not that smart in poor light conditions...
Anyway, as you have seen there are a lot of improvements that I have to do to let this multitouch display be really functional. First of all I should improve the alluminium frame that surrounds the plexiglas in order to have better stability and higher IR light (I've just bought some wooden stripes to do it). Then I have to build up a small structure to hold the screen itself and the webcam in order to have a more stable setup and calibrate the webcam position to have more precise blob detection. Last but not least I need a compliant surface that will improve the coupling beetween the plexiglas screen and the backprojection surface because actually the display requires quite a hard pressure to let the webcam detect the touches. In the NUI Group community a lot of people is using a thin layer of silicone rubber as a compliant surface and seems to work well. Actually I'm still trying to find a good supplier for this uncommon material. With this kind of material the display should be really more reactive and a light touch should be enough to activate it. This way it should also be able to recognize different levels of pressure.......it's also an hope!
Once all my hardware issue will be solved I will move on the software aspects and this should be a more challenging field!
Enjoy the video and.....stay tuned!