Second introduction on myself, I am from Johor, Malaysia and currently an Electrical and Electronic Engineering student from University of Nottingham Malaysia Campus.

After some hard works after around 2 months, I finally got my MT box working and I am satisfies with it so far.
Due to my old laptop, so the performance and response for the flash applications are a bit slow.

Here is my FTIR based 17” LCD Multi-Touch Screen video with some flash demos:
[youtube]8Gf8kYj9PkQ[/youtube]

Blob and Sensitivity Testing:
[youtube]UZZjDTzCcUE[/youtube]

Components Labeling: (Click to view enlarged picture)

Numbering:
(1) LCD Matrix (From LCD Monitor)
(2) LCD Driver Circuit (From LCD Monitor)
(3) LCD Power Supply (From LCD Monitor)
(4) LCD Backlight (From LCD Monitor)
(5) LCD Control Buttons (From LCD Monitor)
(6) VGA Port
(7) Infrared Bandpass Filter
(8) PS3 Eye with SPC900NC lens mount
(9) ATX Power Supply
(10) Power Inlet Connector
(11) USB Socket
(12) Magnetic Switch
(13) Cooling Fan
(15) 8mm thickness acrylic plate
(16) Infrared LEDs
(17) 3mm thickness acrylic plate (for support)
(18) LCD Panel (From LCD Monitor)

Schematic: (Click to view enlarged picture)

This MT Box built using:
- Samsung 740N LCD
- 8mm thickness acrylic
- 30 Osram’s 880nm Infrared LEDs
- 3M Crystalline Windows Film
- ATX Power Supply
- PS3 Eye Camera with SPC900NC lens mount
- 880nm Infrared bandpass filter
- Miscellaneous hardwares
- Knowledge from NUI Group Community

Where I get those hardwares:
- LCD monitor (Second hand @ RM200) - From lowyat.net forum member
- Acrylic (RM30) - From acrylic shop in Jalan Pasar, KL (Map location), the shop will cut it to the dimension you want
- Osram’s LEDs (Price varying) - From RS Malaysia: http://malaysia.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0585242
- ATX Power Supply (Second hand @ RM20) - From local computer shop
- PS3 Eye (RM190) - From one of the shop in Sungei Wang Shopping Mall, KL
- Infrared filter (USD$ 39.50) - From eBay via middle person
- Woods, nails, wires, tools, etc… - From local hardware shop

Running on Gigabyte N411 laptop with specs:
- Intel Centrino 1.6Ghz
- 1GB DDR333 RAM
- Intel Integrated Graphic
- Windows XP SP3

Thanks everyone!

Rear DI reactiVision Linux Project:

Greetings. I thought I would take a little time introduce my MT project to the NUI group and show the progress that has been made thus far.
First I would like to thank everyone here. I could not have gotten this far without this fantastic community. I’ve been working at this for a few months off and on. The hard part was waiting for parts to arrive from distant lands. 

The goal is to create a MT tabletop using reactiVision that can provide an interactive surface for D&D style gaming. Fiducials will be used to interact with the surface and environments. The surface will need to be able to recognize fingers, fiducials, and possibly miniature figurines. Seating should be available for up to 6 players and 1 DM. The main goal is to display interactive overhead maps that can be used by the players. We have bunch of ideas floating around for coding the actual application but for now the focus is to get the basics working.

Parts:
BenQ MP512ST projector
PS3 eye camera (converted to 850nm IR bandpass with wide angle lens)
NIR Optical Filter, 850DF20, 11.5mm painted edge
2.1mm 160-Degree Wide Angle Lens
Walmart mirror (will be made FS soon)
Computer:
---Debian 5.01
---AMD Athalon 64 4000+ (clocked @ 2.4 GHZ presently)
---2 GB Ram
---Nvidia GTX 7800 (256 MB ram)
4x 48 IR LED arrays 850nm

I used my 3D model as a guide to create the plans for the frame and built the frame from 2x4 studs. I wanted it to be solid because there would be up to 7 people at the table. The interactive surface area is 3 feet square. There will be about a 12 inch shelf around the entire outside edge for the players to place books/dice etc. on.

Frame:



I used vellum for the surface. I was unable to find a 3 foot roll at the begining so I used a 2 foot roll and just make sections for testing. The final surface will be one single sheet.

Parts arriving:

The small gray rectangle is a sample of the 7D006 Plexiglas from Ancalagon. After I sell my children (its expensive) I will order some of this great material to replace my current surface.

I then went thought the process of converting my PS3eye to add the IR pass filter and the wide angle lens. Again, without the great information form this community, this part would have been folly. I bought the cheap webcam from Hong Kong that was suggested to replace the lens housing and the filter was purchased from omegabob off ebay. The whole process took only an hour or so after I read all the information provided here and had all the parts.

The IR arrays took awhile to arrive. While I waited I tested a few different screen materials and poured through he forums some more. I settled on vellum for now.

A few nights ago I finally got all the parts working, drivers installed, and reactiVision up and running. There is still a lot of fine tuning that need to be done but here are my test results.

To do list: Not complete I am sure.
Convert the mirror to a front surface mirror.
Install cooling fans.
Calibrate reactiVision to compensate for the wide angle lens.
Install cable/wire management.
Maybe try rosco gray surface.
Work on permanent fiducials.

you can see my concept in picture 3. my mirror is very big and it takes a lot of space in the box.
my question: can i position my camera diagonally or it must perpendicular to the surface? when ok, how big should the angle be about?
is it no problem for the software?

thank you

Portable Large Interactive Display Concept - HyPe’s graduation project

Well… My long journey for getting a Master’s degree in Industrial Design ended last April, where I concluded my graduation project.

After a long break I am finally taking some time to present some of my work to the community, I hope you like it.

For the coming days I will be editing this post adding images and videos. For now, I have added three teaser images. When I have resolved some music issues in the video for youtube I will display that here as well.

A month ago my suitcase was featured on Bright.tv a dutch tech lifestyle magazine:
If you understand Dutch it might be interesting to see the whole video, but if you don’t understand Dutch, just scan through the vid you can see some actual footage.

http://www.bright.tv/series/mobiele-multitouch-tafel

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

For a local Dutch company called DPI Animation House I developed a concept where stakeholders in the building industry are given a tool to discuss their large sized building plans.

Traditional building plans have always been printed and presented on large sized documents, nowadays some architects still prefer these physical building plans; according to some because, scale and detail can be communicated much better on paper than on computer screens.
But since building plans are created on a computer more and more, printing them out for a meeting and handling during meetings can get messy.

The concept presented here is only one way to help supporting the stakeholders in this business. The concept features a suitcase which can be rolled and carried to meetings where building plans need to be discussed. This concept is realized in a physical prototype with a fully working interactive surface. The software which is presented in the video only reflects part of the total concept.

Some technical aspects:

The system is placed on the desired surface and generates a 60 inch projection with an ultra short throw projector.
Integrated camera with front LLP system - yes occlusion is present, but this does not seem to pose a problem when operating.
Wireless pens are used to annotate the CAD files and images, this is presented in the concept but not actually working (yet).
Prototype weight: 13 kg - woodworks make the prototype much heavier.
Proposed weight: 6-7 kg - with polyester fiber casing.

The software part is powered by a standard laptop which is carried along with the suitcase.
I used tbeta to receive and relay the touch inputs to a proof of concept flash program which could load up CAD files and images. In the bright.tv video you can see the CCV calibration screen, but for the graduation presentation CCV wasn’t out yet.

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

I would really like to create a 3D hologram or something to where the image is floating in the air, and make it touch interactive with the NUI technology.

Thanks
Justin

I post here to gather all informations about our MT table project.

It is a interactive art school project, we are 16 on it, especially 2 on the MT table.

Hardware :
-camera : moded PS3eye with m12 mount and lens, and IR BP (Peau Production !! ) - 80$
-VP : BenQ MP512 ST (short throw)- 600$
-Computer : windows XP (I don’t remember the specs) - (free)
-Surface : classic 10mm acrylic (surface : 70x60cm) + Rosco Grey above
-IR lamps : not defined at the moment (certainly 4 of these one)
-Structure : wood (pin+oak+MDF)

Software :
CCV+flash apps(made by ourself)
or reacTIVision + PD app (made by ourself)

At the moment, only Sketchup model and drawings are made.

See also this topic on NUI forum.

Théophile.

Your opinions on this setup, for reactable fudicals and microsoft surface + games?

Brian

[youtube]2CTQIaiG6qQ[/youtube]

Dear NUI-Readers

The Research Group Digital Media of the University of Bremen proudly presents mr.T:
http://dm.tzi.de/en/research/hci/mrt/

Our Mixed Reality Table is built in DI technique and supports Full-HD resolution.
We solved a basic DI problem by realising a homogeneous IR-illumination for a large surface with 51” (130cm) in diagonal.
A technical report about the details of the illumination is in review process currently.
Already now, there are lots of images and plans on our website.

I need a camera with a wide angle lens, in fact, this combination
http://peauproductions.com/store/index.php?main_page=product_info&products_id=11&zenid=1f2d29265e974375429dc60936c999e4
http://peauproductions.com/store/index.php?main_page=product_info&cPath=4&products_id=1&zenid=2c487fa579f6feef96c83295686b6a91
would be perfect.

One problem though, I need it as quickly as possible. Since i live in Denmark, delivering this could take weeks. Does anybody know if this kit, or a similar one, can be found here in Europe?

Sincerely
Rene Olesen