Network Video Recorder User Manual
66
Figure 6-5 Line Crossing Detection
4. Check Enable Line Crossing Detection.
5. Optional: Check Save VCA Picture to save the captured pictures of line crossing detection.
6. Set the line crossing detection rules and detection areas.
1) Select an arming area.
2) Select Direction as A<->B, A->B, or A<-B.
A<->B
Only the arrow on the B side shows. When an object goes across the configured line with
both directions 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.
3) Set the detection sensitivity. The higher the value is, the more easily the detection alarm can
be triggered.
4) Click Draw Region.
5) Draw a virtual line in the preview window.
7. Optional: Draw the maximum size/minimum size for targets.
Note
Only the targets in the size ranging from maximum size to minimum size will trigger line crossing
detection.
1) Click Max. Size/Min. Size.
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