Configuring Video Analytics Settings
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Figure 7-8 Configuring IVS
•
Tripwire: When the target crosses tripwire from the defined motion direction, the
system performs alarm linkages.
•
Intrusion: When the target enters, leaves, or appears in the detection area, the system
performs alarm linkages.
3
. Click Draw Rule to draw rule line in the image. Right-click to finish drawing.
After drawing rules, drag corners of the detection area to adjust the area range.
•
Tripwire draw rule: Draw a detection line.
•
Intrusion: Draw a detection area.
During the detection of abandoned object, the alarm is also triggered if pedestrian o
r
vehicle stays for a long time. If the abandoned object is smaller than pedestrian and
vehicle, set the target size to filter pedestrian and vehicle or properly extend the duration
to avoid false alarm triggered by transient staying of pedestrian.
During the detection of crowd gathering, false alarm might be triggered by low
installation height, large percentage of single person in an image or obvious target
occlusion, continuous shaking of the camera, shaking of leaves and tree shade, frequent
opening or closing of retractable door, or dense traffic or people flow.
4. (Optional) Click Draw Target at the right side of Target Filter, and then draw the target in
the image.
When the rule of crowd gathering is configured, you do not need to set target filter, bu
t
d
raw the minimum gathering area. Click Draw Target to draw the minimum gathering
area in the scene. The alarm is triggered when the number of people in the detection area
exceeds the minimum area and the duration.
5. Click Clear to delete all drawn detection lines.
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