Bertel, the recent issue of EDN (15 Jan 98) mentions two low cost
software packages for motion-sensing. One package, "Gotcha" by
Prescient Systems allows you to set parameters that trigger a camera and
computer's action. For example, how much motion is necessary to start
recording or take an action. You can also mask areas of a scene to allow
motion. The package costs $44.95 and is suppose to work with any camera
that produces video for Windows. Their web site is at:

      www.prescientsys.com

   The other company is Reality Fusion. Their algorithm performs edge,
shape, and color detection. Their site is at:

      www.realityfusion.com

   - Tom

At 09:58 PM 1/23/98 +0100, you wrote:
>Aided by the input of various list members, I decided to go the two camera
>route to detect motion, well, actually humans moving in an area of 200x500
>feet. While doing research on image processing libraries, I found the
>following interesting link:
>
>http://www.faceit.com/devkit/api.html
>
>
>The library actually finds _faces_
>
>BS