At 07:31 AM 1/21/98 +1000, Ray Gardiner wrote: > >What about some image processing to detect the movement using the camera >you already have? (I guess it depends on the Field of View).. > >PC based frame grabbers are 'relatively' cheap now days, and the motion >detection algorithm could be simple frame by frame comparison, execution >times should not be too much of a constraint. Once you have determined the >center of movement you could then zoom/autofocus and track.. Place is too large and method too slow. Camera doesn't have total area in field of view, so it needs to pan-compare-etc. Not practical. BS