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Before You Start
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Go to VCA and select any of the smart applicaons that come with the system.
Steps
1.
Go to VCA → Set Applicaon → Smart Event → Line Crossing Detecon .
2.
Check Enable.
3.
Click Add to add a rule and set a detecon area.
1) Draw a detecon line. Click and a line with an arrow appears in the live view. Drag the line
to the locaon on the live view as desired.
2) Set the minimum size and the maximum size for the target to improve detecon accuracy.
Only targets whose size are between the maximum size and the minimum size trigger the
detecon. Click and , then drag the mouse in the live view to draw the minimum and
maximum target size.
3) Oponal: Click to delete all the seng areas.
4.
Set parameters.
Direcon
It stands for the direcon from which the object goes across the line.
A<->B: The object going across the line from both direcons can be detected and alarms are
triggered.
A->B: Only the object crossing the congured line from the A side to the B side can be
detected.
B->A: Only the object crossing the congured line from the B side to the A side can be
detected.
Sensivity
It stands for the percentage of the body part of an acceptable target that goes across the pre-
dened line. Sensivity = 100 - S1/ST × 100. S1 stands for the target body part that goes
across the pre-dened line. ST stands for the complete target body. The higher the value of
sensivity is, the more easily the alarm can be triggered.
Figure 10-2 Set Rule
Network Camera User Manual
80
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