Multi Touch
This video of a multitouch screen has been floating around the web for a while.
(by Jeff Han)
The technology behind it is surprisingly simple - a modified webcam and Infra Red LEDs internally reflected into a sheet of acrylic. When you touch the acrylic the internal reflection is broken and the webcam detects your fingers as bright blobs of IR light.
I am building a working prototype of this (which some of you have seen), but I really need someone with C++ experience to help with the software side of things.
Other multitouch hobbyists have created some source code that handles the configuration and blob tracking (apart from being a bit CPU intensive it seems to work very well), but it would be extremely useful if someone could add the ability to send the touch information (blob id, x, y) out via a server socket to other programs such as Processing or Flash so we can actually create some useful applications/games for it.
Anyone up for the challenge?
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