Network Video Recorder User Manual
142
A<->B: Only the arrow on the B side shows; when an object going across the configured
line with both direction can be detected and alarms are triggered.
A->B: Only the object crossing the configured line from the A side to the B side can be
detected.
B->A: Only the object crossing the configured line from the B side to the A side can be
detected.
2) Click-and-drag the slider to set the detection sensitivity.
Sensitivity: Range [1-100]. The higher the value is, the more easily the detection alarm
can be triggered.
3) Click-OK to save the rule settings and back to the line crossing detection settings
interface.
Figure 9-3 Set Line Crossing Detection Rules
Step 7 Click and set two points in the preview window to draw a virtual line.
You can use the to clear the existing virtual line and re-draw it.
Up to 4 rules can be configured.
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