Motion tracking algorithm

Posted by mamech on Jun 11, 2011; 12:36am
URL: http://imagej.273.s1.nabble.com/Motion-tracking-algorithm-tp3684268.html

Hello

There is some kind of web cams that tracks the moving object and making it into the focus of its vision field. So it tracks the body .

I really do not understand what is the algorithm of image processing in these types. I know that for motion detection, I should subtract a frame from the previous, so I get a new image that contains only the moving
object, but what is the case if the cam itself moves? How can it know that the centroid of the moving object is into its focus ??

Actually I do want to make similar application using ordinary webcam based on 2 motors and external controller, but imagej will be the decider to say if the moving object is into focus or not.


Can anyone help me regarding this?