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Camera
Zone
Mode
Pixel Count (%)
Pixel Change (%)
Global Activity Mode
Reload Img (Red)
Clear All (Green)
Default Grid (Yellow)
Dedicated Micros ©2011
Displays the available Camera source.
There are 16 VMD zones within the image that can be individually
configured, 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.
The zone mode identifies 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.
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%.
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. The default setting
is 20%.
Select 'Always Active' for Detection to operate constantly
Refreshes the camera image.
Removes all defined zones from the image.
Displays the default 16 zone grid across the whole image.
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