French Release of NUI MT BOOK (Part 1)

Some may have noticed that I’m getting closer to my final exam (nothing to do with Multitouch Technologies unfortunatly) because I havn’t been very active lately.
I try my best to keep my updated on all possible breakthrough in MT Tech, and I have some cool stuff planned for later this year…

Anyway, here is something that will please my French readers (who represent a third of my visitors, same for the US, and then the rest of the world…).
Here is the first part of the NUI MT TECH BOOK translated in French.
This part includes all you need to know about hardware in an MT setup.

As always, here are both links on my blog and on megaupload :

I hope this will help you starting or improving your setup…
I’m always here to help on the NUI Forum and always available through the contact form of my blog…


Band Pass filter

I’ve finished my test of my new band pass filter. I’ve purchased it on Peau’s site, a 850nm band pass filter. Here are my impressions after 2 days of tests…

First of all, if you don’t use a proper filter, you won’t get a great experience. The band pass filter is the best solution I think.
My negative film filter was still good, and I didn’t noticed a huge change at the first glinch, but after several hours of tests, here are the improvments I noticed.
The camera now sees only IR 850nm so any other light source won’t affect the quality of the blobs. That’s why ambiant light is less a problem with this filter. Moreover, as there is only 850nm IR visible (which is the one of my illuminators), the camera has less trouble to adjust gain and exposure on the right values to see my fingers. Thanks to that, blob have a higher contrast…
So both this points are good enough to purchase such filter… but not as your main priority… As you may have noticed on my previous reports and my video, you can get a nice experience without it, but having one reduces the possibility of having further problems with anbiant light and low blob contrast…
Hope this help so of you…

Have fun !!!

PS3 Eye

Hi everybody,
I wanted to get you a little review of my first experiences with the PS3 Eye under Windows 7…


This camera is very good. I reach without problem 125fps @ 320*240 and 60fps @ 640*480 (75fps @ 640*480 is reachable but fps can easily drop on my computer at this resolution) and it a great improvmenent for my table, now the touch experience is very real. With my other camera (QuickCam Pro 9000) it was working fine, but here with the PS3 Eye everything is more responsive, smoother, faster… and the IR sensibility is great… (maybe too much lol).
I recommand this camera for all people because it is cheap, and one of the best for our setup.

MS Touch Pack (suite) and Work in Progress

So I tried this week end the touch pack on my Rear DI Setup. It was just great. I think this pack is really a good start for the expansion of multitouch devices.
So for the people who don’t know what is the content of the pack : 3 multitouch games, 1 screensaver, 1 photo collage app, 1 globe app.
For more infos on the pack, just google a little and you will find anythinkg you want about it.
As soon as my setup is complete, I swear I can make it within 1-2 weeks, I will post some pictures and videos, and I’ll publish a list of apps (win, flash, Python) which are working with the table…
By the way, my table is almost done. I’ve bough the table which will be the base of the setup.

here are some pics of the table :…

I’ve placed the illuminators (I use 6-7 of the 48 led lluminators from HK (ebay)) and the mirors and the projector. I will have a 20″ screen (maybe a little bit more but I can’t do more because I don’t want the table to be more than 45cm high.).
I still have to find the right place for the camera and to do some tests, but I hope this will be over soon.
I keep you in touch…

EDIT I won’t make it within two weeks I think, as soon as I get the glass for my table I will do some videos…

My Setup

My project is to build a nice MT coffee table…
I have tried both FTIR and Rear DI setup and I picked the Rear DI because it is easier to build and enable fiducial interaction.
The table will be 50-60cm high, and then 120cm*50cm. The screen will be around 60*37 (a 16:10 ration for my screen configuration…).
I’m using as projector a Sanyo PLZ3 and as webcam the Logitech QuickCam Pro 9000 (mod in order to see IR light).
I will simply use glass for my surface, and tracing paper as projection surface.

My computer is an HP DV7-1035em (laptop)
Windows 7 Ultimate 64 bits (signed edition, tks M$)
Intel Centrino 2 Dual Core P7350 @2.00Ghz
Nvidia 9600M GT 512Mo DDR2
Dual HDD : Kingston 128Go SSD Driver + Samsung 250Go HDD SATA Drive
(before : dual boot Windows Vista Ultimate + Windows Seven Beta 1 build 7000)