User manual

DV-IP User Manual v1.01 Feb 28
th
2003
DV-IP User Manual
24
The VMD Configuration box allows you to set 16 individually defined areas per camera,
allowing for very complex motion detection. The configuration box has a number of fields
defined below:
Camera - Select the Camera for VMD set up.
Zone - Provides 16 independent zones for VMD per camera. Each zone is defined bgy left
clicking on the screen for the top-left of the VMD zone, and clicking again on the screen to
define the bottom-right corner. The box is drawn to show the size of this zone. To define an
additional zone, choose the next zone in the Zone pulldown.
Mode - (Normal, Last Trigger or Static)
Normal - Compares the reference image to the new image.
Last Trigger - For indoor use only. The reference image is compared to the next image
received to determine activation.
Static - For indoor use only. A reference image is compared to a new image over a period of
ten seconds +.
Graticule ON/Off - Displays the VMD pixel blocks.
VMD resolution - Each image is divided into 80 x 64 pixel blocks.
Pixel Count (%) - This is the percentage of pixels in a zone that are needed to change to
invoke an alarm.
Pixel Change (%) - This is the percentage change of the pixel count, or the difference in
the grey scale of the pixels.
Clear Cells - Remove all defined zones from an image.
Default Grid - Display 16 pre-defined zones, arranged equally about the image.
Graticule On/Off - Displays a VMD grid to aid definition of the zones.