How to detect motion on camera to move mouse

We are doing experiment with our webcam. We want to move mouse pointer with camera by moving an easily identifieable object in front of camera. For example move an led in dark room in front of camera and it will detect the motion.

How do we do that? Pr开发者_如何学运维ogram a software that capture each image, process it, find the position of light and set mouse accordingly? Is there any ready made library (c#) for doing such thing.

u may want to use opencv for your project..

http://opencv.willowgarage.com/wiki/

http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/index.html

For C#

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