Setup guide

Dedicated Micros Page 41
Function Description
Camera This is a drop down list of the video inputs on the Digital Sprite 2,
selecting one of the inputs will display the corresponding video source.
Zone There are 16 advanced VMD zones that can be individually configured,
select the zone from the drop down list.
Mode 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.
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.
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, a 100% pixel change
would be from black to peak white.
Clear Cells Removes all defined zones from the image.