Dedicated Micros digital sprite 2 Setup Manual page 51

VMD Zones
This option allows the VMD Zone configuration options to be accessed.
Camera 01 VMD Zones
Zone
Zone 01 Mode
Zone 01 pixel count
Zone 01 pixel change
Zone
There are settings that can be configured for each of the 16 advanced VMD
zones, each can be selected for configuration within this option. Use the
buttons to scroll through the zones.
Zone XX Mode
The Zone Mode identifies when the reference image is taken for triggering
VMD. The options available are:
• Normal - the reference image is updated approx. every second to allow
small changes in the scene without triggering.
• Last trigger - the reference image is only updated when the VMD is
triggered, and would be used under controlled lightingconditions to avoid
false triggers due to ambient light changes.
• Static - the reference image is collected on startup and is never updated.
This would be used in a "sterile" area where there are no changes expected.
• Zone disabled - this will disable the zone mode.
Zone XX Pixel Count
This value equates to the percentage of pixels that must change in the
selected zone for the VMD event to be triggered.
Note: This should be tested after configuration.
01 01 - 16
Normal Normal, Last trigger, Static, Zone disabled
20% 02 - 100%
20% 02 - 100%
or
Zone XX Pixel Change
This setting is a percentage value of the overall change required in the
greyscale to be included in the pixel count. The percentage change is defined
over the complete range of black to white, 100% pixel change would be a
change from black to peak white.
Note: This setting should be tested after configuration to ensure the settings
are sufficient to trigger a VMD event.
VMD Grid
The VMD grid covers 16 default areas of the screen, it is possible to configure
the grid to only cover the areas of interest.
Note: Ensure the camera to be configured has been selected prior to
highlighting the Setup option.
When Setup is selected a prompt is displayed. Follow the instructions on
screen to configure this option.
Use direction keys to navigate grid
Use camera 1 key to set selected zone
Use camera 2 key to cycle through zone modes
Use camera 4 key to toggle screen text on / off
Use << and >> to change between zones
Press MENU / MODE key to start setup
Press MENU / MODE key again to exit grid
To edit the grid;
1. Move the '*' to the start point of the zone to be created. Use the
to move between the default zones.
2. Press Camera 1 to switch to 'drawing' mode and to automatically delete
the existing (if applicable) zone (see on-screen text to check the drawing
option is selected).
3. Use the arrow keys to move to the end point for the zone (this will be
diagonally opposite the start point to create a box).
4. Press Camera 1 to take the unit out of the drawing mode.
5. You can press Camera 2 to cycle through the modes available and select
the mode that is to be applied to the created zone. This is the same as
setting the VMD Zone mode.
or
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