Operating instructions
Dedicated Micros ©2010
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SD Advanced
Masked Cam Detection
The unit has the capability to identify if a video input has been covered (by hand, spray paint, etc.)
to prevent video images being viewed and recorded. The Camera Masking option identies normal
levels of contrast and uses them as a base line. It then compares these against a user dened
minimum contrast level. If the video input goes below this user dened level an event is generated
on the unit.
Simple Activation
Simple Activation Select Zone Activation
Camera Displays the camera number and camera title as congured on
the Camera Setup page.
On Enables or disables the feature on the camera.
Dwell This is the delay the unit will wait before declaring the camera
is masked.
Threshold Denes the threshold the system uses to dene that a camera is
masked. It will be necessary to adjust this gure to avoid
false alarms.
Note: In low light conditions, enter a gure below the contrast threshold (see below). Experiment
with camera masking alarm activation until a gure is selected were false alarms
are avoided