User manual

Setup
ADPRO FastTrace, Issue 5 2 - 27
When the option is selected a display of the selected camera's image is shown along with three buttons.
The current options available are:
• Set All Places the maximum number of detection zones over the video image. All zones
are active. The maximum number of zones for PAL systems is 396 zones (22
wide x 18 high), NTSC systems have 330 zones (22 wide by 15 high)
• Clear All Removes all currently assigned zones. No zones are active
• Cancel Leave the currently assigned mask(s) and exit without changes
The Activity Detection Area cursor appears as a small filled box
 on the image area. The mouse is used to select
a detection zone (left click). To remove a detection zone, left-click again.
To create another Activity Detection Area, simply move the cursor to the next position required and repeat the creation
process. Press OK when finished.
2.3.3.3.9 Contrast Monitoring
The Contrast Monitoring feature is provided as a check that the contrast of the camera image is acceptable. The settings
will allow detection of unusually low contrast levels.
The contrast monitoring in ADPRO FastTrace monitors the contrast difference between the brightest part of the
camera image and the darkest part of the camera image. If the contrast difference drops below the user defined
threshold then an alarm can be generated.
A low contrast alarm will be generated for both the following situations:
• the camera is ‘bagged’ by placing an opaque material over the lens, causing the image to go dark
• the camera has a very bright light shone into the lens, causing the image to flare and ‘whiteout’
If the camera contrast level falls below this limit, then a contrast alarm event is generated. This event is setup via
Operational Behaviour / Camera Behaviour / Event Response / Dial out on invalid contrast.