Dahua Technology DH-IPC-EBW81242N-AS-S2 12MP Outdoor Network Panoramic Fisheye Camera with Night Vision - Manual (Page 129)

Operation Manual
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Procedure
1. Select AI > Smart Plan .
2. Click next to IVS to enable IVS of the corresponding channel, and then click Next .
3. Click the Global Config tab.
Figure 8-21 Global configuration of IVS
4. Set calibration area and ruler.
a. Click and draw a calibration area in the image, and right-click to finish the drawing.
b. Click the ruler icon to draw one horizontal ruler and three vertical rulers in the calibration
area.
● indicates vertical ruler, and indicates horizontal ruler
● Select an added ruler, and click to delete the ruler.
5. Set the sensitivity.
Adjust the filter sensitivity. With higher value, it is easier to trigger an alarm when low-contrast
object and small object are captured, and the false detection rate is higher.
6. Click Apply .
Result
1. Select the verification type, and then click Calibration Verification .
To verify vertical ruler and horizontal ruler, respectively select Height Verification and Width
Verification .
2. Draw a straight line in the image to verify whether the rulers are correctly set.
In case of big difference between the estimated value and the actual one, fine-tune or reset
parameters until the error requirement is met.
8.4.2 Rule Configuration
Set rules for IVS, including cross fence detection, tripwire, intrusion, abandoned object, moving
object, fast moving, parking detection, crowd gathering, and loitering detection.
● Select AI > Smart Plan , and enable IVS .
● Select AI > Smart Plan > Global Config to finish global configuration.
For the functions and applications of the rules, see Table 8-7.