Operating Instructions and Installation Instructions
Dedicated Micros ©2010
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CamVu 2000
DRAFT
Camera Displays the available Camera source.
Zone There are 16 VMD zones within the image that can be individually
congured, select the zone from the drop down list.
A selected zone can be re-sized by clicking the mouse button (use
the USB mouse if viewing on a local monitor) and then moving and
clicking the mouse again. A rectangle will then be displayed based on
these two selected points.
Mode The zone mode identies when the reference image is taken for
triggering VMD. The options are:
Normal The reference image is updated approx every second.
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 is best 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.
Pixel Count (%) 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. The default setting is 20%.
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 dened over the complete range of black to white, a 100%
pixel change would be from black to peak white. The default setting
is 20%.
Reload Img (Red) Refreshes the camera image.
Clear All (Green) Removes all dened zones from the image.
Default Grid (Yellow) Displays the default 16 zone grid across the whole image.