Honeywell MAXPRO NVR Hybrid XE Installation And Configuration Manual page 332

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VMD Settings and Motion-based Recording Configuration
Fi ne Tuning the Video Motion Detection
For optimum results, adjust the VMD configuration to match the camera field of view, regions
of interest and other factors. The recommended configuration procedure is:
1.
2.
Tip: The camera only measures motion inside the drawn box. For example, a person or vehicle
moving along the boundary of the box may or may not trigger an alarm, because their motion
is only partially evaluated. Therefore, it is important to adjust the region-of-interest boxes to
fully cover the required areas of interest.
3.
4.
Note:
Increasi ng VMD Sensitivity
If the relevant scene motion does not trigger VMD alarms, try the following adjustments to
increase VMD sensitivity.
Tip: After VMD sensitivity is increased, observe the performance in other lighting conditions in
case further tuning is required to prevent false alarms.
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Identify areas in the image where motion detection alarms should be triggered. In some
applications, motion anywhere in the image needs to be reported. In other applications,
you may wish to monitor specific areas such as doors, parking lot entrances, or other
areas of interest.
Select one of the five available regions for each area of interest and draw the
region-of-interest box for that region to fully cover the area of interest.
Test your initial configuration setup by observing VMD performance to ensure that
relevant scene motion triggers alarms and to ensure that the camera is not reporting false
alarms (such as VMD alarms triggered due to image noise). In cameras with a wide field
of view, or when activity happens far away from the camera, people and vehicles may
appear rather small in the image. In such cases, it may not be possible to apply a single
area of interest to the whole field of view to reliably detect motion. In such cases,
Honeywell recommends covering the camera view with multiple, smaller region-of-
interest boxes, concentrating on specific areas where motion alarms are important, such
as entrances, restricted access areas, and so on.
Use the medium sensitivity of 50% as the initial setting. You can adjust this further if
required.
Observe VMD performance in all expected lighting conditions after the initial
configuration is applied. Ensure that relevant scene motion triggers alarms and
ensure that the camera is not reporting false alarms (such as VMD alarms
triggered due to image noise).
• Decrease the sensitivity level from 80% to 50%, or from 50% to 30%. This change
causes smaller objects to trigger alarms and it requires smaller contrast level to
report an alarm. This should be the primary adjustment mechanism.
• Reduce the size of the region-of-interest box and, if needed, add more regions.
Note that this adjustment causes smaller objects to also trigger VMD alarms.
MAXPRO NVR 5.6 Installation and Configuration Guide