Network Video Recorder User Manual
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Figure 12-10
Sudden Scene Change
Step 4
Select a Camera to configure.
Step 5
Check Enable Sudden Scene Change Detection.
Step 6
(Optional) Check Save VCA Picture to save the captured pictures of sudden scene change
detection.
Step 7
Drag the Sensitivity slider to set the detection sensitivity. Sensitivity range: [1-100]. The
higher the value is, the more easily the change of scene can trigger the alarm.
Step 8
Set the arming schedule. Refer to Chapter 11.1 Configure Arming Schedule.
Step 9
Set the linkage actions. Refer to Chapter 11.2 Configure Alarm Linkage Actions.
Step 10
Click Apply.
12.11 Defocus Detection
Purpose:
The image blur caused by defocus of the lens can be detected.
Step 1
Go to System > Event > Smart Event.
Step 2
Select a Camera to configure.
Step 3
Click Defocus.
