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53
5.6.20 Object Removal Detection
Note:
The function is only supported by certain camera models.
Purpose:
Object removal detection function detects the objects removed from the pre-defined region,
such as the exhibits on display, and a series of actions can be taken when the alarm is triggered.
Steps:
1. Enter the Object Removal Detection settings interface.
2. Check Enable checkbox to enable the function.
3. Select the region from the drop-down list for detection settings.
4. Set up rules for the selected region.
1
．
Click Draw Area to start drawing.
2
．
Click on the live video to specify the four vertexes of the detection region, and right click
to complete drawing.
3
．
Set the Max. Size and Min. Size for valid targets. Targets smaller or larger than the valid
target size are not able to trigger detection.
Max.Size: The maximum size of a valid target. Targets with larger sizes would not trigger
detection.
Min.Size: The minimum size of a valid target. Targets with smaller sizes would not trigger
detection.
4
．
Click Stop Drawing when finish drawing.
5
．
Set sensitivity for object removal detection.
Sensitivity: Range [1-100]. Sensitivity stands for the percentage of the body part of an
acceptable target that leaves the pre-defined region.
Sensitivity = 100 - S
1
/S
T
*100
S
1
stands for the target body part that leaves the pre-defined region. S
T
stands for the
complete target body.
Example: if you set the value as 60, a target is possible to be counted as a removed object
only when 40 percent body part of the target leaves the region.
6
．
Set the time threshold for the detection.
Threshold: The threshold for the time of the objects removed in the region. If you set the
value as 10, alarm is triggered after the object leaving the region for 10s.
5. Repeat the above steps to configure other regions. Up to 4 regions can be set. You can click
the Clear button to clear all pre-defined regions.
6. Click Area Settings to set the arming schedule.
7. Click Linkage Method to select the linkage methods.
8. Click Save to save the settings.
5.7 Storage
Record Schedule
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