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I Series Network Video Recorder User Manual, 030117NA
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object is in the defined detection area is longer than the set time, the alarm will be triggered.
•
Sensitivity: Range [1-100]. The value of the sensitivity defines the size of the object that can trigger the
alarm. The higher the value, the more easily the detection alarm will be triggered. Click-and-drag the slider
to set the detection sensitivity.
•
Percentage: Range [1-100]. Percentage defines the ratio of the in-region part of the object that will trigger
the alarm. For example, if the percentage is set as 50%, when the object enters the region and occupies
half of the whole region, the alarm will be triggered.
Figure 161 Set Intrusion Crossing Detection Rules
8.
Click OK to save the rule settings and go back to the line crossing detection settings interface.
9.
Click
and draw a quadrilateral in the preview window by specifying four vertexes of the detection region,
and right click to complete the drawing. Only one region can be configured.
NOTES:
You can use the
to clear the existing virtual region and re-draw it.
Up to four rules can be configured.