Touche is a tracking environment that has been written for Mac OS X Leopard and uses many of its core technologies, such as QuickTime, Core Animation, Core Image and the Accelerate framework.
In order to achieve good tracking performance Touche also uses high-quality open-source libraries such as OpenCV and libdc1394.
The Touche environment consists of two parts: a standalone tracking application written in Cocoa, that comes with lots of configuration options as well as calibration and test tools, and a Cocoa framework that can be embedded into custom applications in order to receive tracking data from the tracking application.
This way, you can easily experiment with Mac OS X technologies such as Core Animation or Quartz Composer on your multitouch table.
