DS-77xxNXI-I4/16P/4S NVR User Manual
UM DS-77xxNXI-I4/16P/4S 050619NA 131
12.12 Defocus Detection
Purpose
Image blur caused by lens defocus can be detected.
1. Go to System > Event > Smart Event.
2. Click Defocus.
Figure 12-12 Defocus Detection
3. Select a Camera to configure.
4. Check Enable Defocus Detection.
5. (Optional) Check Save VCA Picture to save the captured defocus detection pictures.
6. Drag the Sensitivity slider to set the detection sensitivity. Sensitivity range: [1-100]. The higher the
value, the more easily the defocus image will be detected.
7. Set the arming schedule. Refer to
Chapter 11.1 Configure Arming Schedule
.
8. Set the linkage actions. Refer to
Chapter 11.2 Configure Alarm Linkage Actions
.
9. Click Apply.
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