HIKVISION DS-2CD63C5G0-IVS User Manual page 95

3. Select the line from the dropdown list for detection setting.
4. Click the Draw Area button, and a virtual line is displayed on the live video.
5. Click-and-drag the line, and you can locate it on the live video as desired.
Click on the line, two red squares are displayed on each end, and you can
click-and-drag one of the red squares to define the shape and length of the line.
6. Select the direction for line crossing detection. And you can select the directions
as A<->B, A ->B, and B->A.
A<->B: Only the arrow on the B side shows; when an object going across the
plane 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
User Manual of Network Fisheye Camera
Figure 5-52 Line Crossing Detection Setting
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