Network Video Recorder User Manual
129
12.12 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 Click Defocus.
Figure 12-12 Defocus Detection
Step 3 Select a Camera to configure.
Step 4 Check Enable Defocus Detection.
Step 5 Optionally, check Save VCA Picture to save the captured pictures of defocus detection.
Step 6 Drag the Sensitivity slider to set the detection sensitivity. Sensitivity range: [1-100]. The
higher the value is, the more easily the defocus image can be detected.
Step 7 Set the arming schedule. Refer to Chapter 11.1 Configure Arming Schedule.
Step 8 Set the linkage actions. Refer to Chapter 11.2 Configure Alarm Linkage Actions.
Step 9 Click Apply.
12.13 PIR Alarm
Purpose
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