6.2.19 Defocus Detecon
Image blur caused by lens defocus can be detected.
Steps
1. Go to Smart Analysis → Smart Event Sengs → Other Events .
2. Select a camera.
3. Click Defocus.
Figure 6-16 Defocus Detecon
4. Check Enable.
5. Oponal: Check Save VCA Picture to save the captured defocus detecon pictures.
6. Set the
detecon sensivity.
Sensivity
Sensivity range: [1-100]. The higher the value is, the more easily the defocus image will be
detected.
7. Set the arming schedule. Refer to
Congure Arming Schedule .
8. Set the linkage
acons. Refer to Congure Linkage Acons .
9. Click Apply.
6.2.20 Sudden Scene Change
Detecon
Scene change detecon detects the change of the video security environment aected by external
factors, such as the intenonal rotaon of the camera.
Steps
1. Go to Smart Analysis → Smart Event Sengs → Other Events .
Network Video Recorder User Manual
70