What’s a MTmini?
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
- 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 (I use a Philips SPC900NC)
- Computer (dual core recommended, but not needed)
- Optional Picture Frame
** (Total Cost: $5 - $50)
Software and Demos
Get MTmini Package v1 - Includes Touchlib rev (393) Writen by David Wallen, Demos and Getting Started Instruction Guide.
How’s it Work and What Conditions are Necessary ?
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
- MAC version of the software.
- Simple Techniques for reducing the box height (mirrors, wideangle camera lens).
Thank you for Youtube.com & Instructables.com