Featured: How to Make a Cheap Multitouch Pad

[Video]

How to Make a Cheap Multitouch Pad
         


            
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            ALL HARDWARE AND SOFTWARE UPDATES WILL BE MADE ON MY BLOG: http://ssandler.wordpress.com/MTmini

For information on building a full multitouch table see:
http://www.NUIGroup.com

MTmini Downloads:
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Download MTmini Software Package v1 http://nuispace.com/ss/MTmini%20package%20v1.zip

Download Getting Started PDF (included in the package above) -
http://audiotouch.googlecode.com/files/MTmini%20-%20Getting%20Started%20v1.pdf


MTmini Discussions:
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* MTmini Hardware Discussion: http://nuigroup.com/forums/viewthread/1731/
* MTmini Software Discssion: http://nuigroup.com/forums/viewthread/1825/


What's a MTmini?
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Don't have a Multitouch Table yet? Have one, but need something smaller for testing? Building a small portable multitouch pad will allow you to test software and experiment on a smaller scale while building your full table or when away from your multitouch screen. Have fun and make a MTmini! This uses Front Diffused Illumination, with normal ambient light (infrared not required or needed) and a normal off-the-shelf webcam (IR filter can still be in place).


-Materials-
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-Cardboard Box
-Piece of Clear Flat Sturdy Material (ie. Glass, acrylic, plexiglas)
-Paper (ie. printer paper, tracing paper, almost any paper)
-Webcam or Video Camera (Any webcam should work)
-Computer (dual core recommended, but not needed)
-Optional Picture Frame

Total Cost: $5 - $50

-Software and Demos-
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MTmini Package v1 -
http://nuispace.com/ss/MTmini%20package%20v1.zip
- Includes Touchlib rev (393) Writen by , Demos and Getting Started Instruction Guide.

-How's it Work and What Conditions are Necessary?-
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For this to work, all you need is a room with (at least) some light. The results will be best when the room lighting is even (no bright lights shinning from one direction onto the multitouch pad).

When you place you fingers on the surface, shadows are created where your fingers are. The webcam sees these shadows and sends the image to the tracking software which tracks the shadows as they

-Coming Soon-
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-MAC version of the software.
-Simple Techniques for reducing the box height (mirrors, wideangle camera lens).

For more information, visit:
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-For Hardware and Software Updates:
http://ssandler.wordpress.com/MTmini
-MTmini Hardware Discussion: http://nuigroup.com/forums/viewthread/1731/
-MTmini Software Discssion: http://nuigroup.com/forums/viewthread/1825/
-NUIGroup For all your multitouch needs:
http://www.nuigroup.com/forum

Thanks to:
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-David Wallen
-Christian Moore
-Laurence Muller
-NUIgroup Community
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               Added: April 28, 2008

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