Tracker is an image and video analysis package and modeling tool that is built upon the Open Source Physics Java code library. Features include object tracking with position, velocity and acceleration overlays and graphs, special effect filters, multiple reference frames, calibration points and line profiles for analysis of spectra and interference patterns. It is designed to be used in introductory college physics labs and lectures.
Please check out http://www.cabrillo.edu/~dbrown/tracker/

[url=http://www.cabrillo.edu/~dbrown/tracker/webstart/tracker.jnlp]Web Start Tracker[/url]
[url=http://www.cabrillo.edu/~dbrown/tracker/webstart/tracker.jar]Download Tracker[/url]