Dedicated Micros TransVu Operation Manual page 37

Function
Camera
Zone
Mode
Pixel Count (%)
Pixel Change (%)
Clear Cells
Default Grid
Graticule On
Zone Display Only
Resolution
Refresh
36
Description
This is a drop down list of the video inputs on the TransVu, selecting one of the inputs will
display the corresponding video source.
There are 16 advanced VMD zones that can be individually configured, select the zone
from the drop down list.
The zone mode identifies when the reference image is taken for triggering VMD. The
options are:
Normal - the reference image is updated approx. 1/second so this will only 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 lighting, i.e. so there are no false triggers due to ambient light
changes
Static - the reference image is collected on startup and is never updated. This would be
used in 'sterile' areas where there are no changes expected
Zone disabled - this will disable the zone mode.
This value is set as a percentage and equates to the percentage of pixels in the selected
zone that must change for the VMD event to be triggered.
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, a 100% pixel change would be from black to peak white.
Removes all defined zones from the image.
Displays the default grid of 16 VMD zones over the whole image.
Displays a grid to assist in identifying and creating zone areas.
This will display the areas of the image that are covered by a zone only and will assist you
in ensuring the necessary areas are covered.
This is the resolution of the reference VMD image being displayed.
This will update the reference image to the latest view during set up.
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