User Manual

6.2.7 Set Line Crossing Detecon
It is used to detect objects crossing a pre-dened virtual line. If it occurs, the device can take
linkage
acons.
Steps
1. Go to
Conguraon → Event → Smart Event → Line Crossing Detecon .
2. Check Enable.
3. Select one Line and set the size
lter. For the size lter sengs, refer to Set Size Filter .
4. Click Draw Area and a line with an arrow appears in the live video. Drag the line to the locaon
on the live video as desired.
5. Set rules.
Direcon It stands for the direcon from which the object goes across the line.
A<->B: The object going across the line from both direcons can be detected
and alarms are triggered.
A->B: Only the object crossing the
congured line from the A side to the B
side can be detected.
B->A: Only the object crossing the congured line from the B side to the A
side can be detected.
Sensivity It stands for the percentage of the body part of an acceptable target that
goes across the pre-dened line. Sensivity = 100 - S1/ST × 100. S1 stands for
the target body part that goes across the pre-dened line. ST stands for the
complete target body. The higher the value of
sensivity is, the more easily
the alarm can be triggered.
Detecon
Target
Human and vehicle are available. If the detecon target is not selected, all
the detected targets will be reported, including the human and vehicle.
Target
Validity
If you set a higher validity, the required target features should be more
obvious, and the alarm accuracy would be higher. The target with less
obvious features would be missing.
Network Camera User Manual
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