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110
Step 5 Click to draw rule line in the image. Right-click to finish drawing.
For requirements of drawing rules, see Table 8-2. After drawing rules, drag corners of the
detection area or detection line to adjust the area range.
Figure 8-2 Draw rules
Table 8-2 Description of IVS analysis
Rule Description
Tripwire Draw a detection line.
Intrusion
Draw a detection area.
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During the detection of abandoned object, the alarm is also
triggered if pedestrian or 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.
Step 6 (Optional) Click other icons at the right side of the image to filter targets in the image.
●
Click to draw the minimum size of the target, and click to draw the
maximum size of the target. Only when the target size is between the maximum size
and the minimum size, can the alarm be triggered.
●
Click , and then press and hold the left mouse button to draw a rectangle, the pixel
size is displayed.
●
Click to delete the detection line.
Step 7 Configure rule parameters for IVS.
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