Network Video Recorder User Manual
183
Please refer to the Chapter 9.4 Intrusion Detection for operating steps to configure the
unattended baggage detection.
The Threshold[5s-20s] in the Rule Settings defines the time of the objects left over in the
region. If you set the value as 10, alarm is triggered after the object is left and stay in the
region for 10s. And the Sensitivity defines the similarity degree of the background image.
Usually, when the sensitivity is high, a very small object left in the region can trigger the
alarm.
Up to 4 rules can be configured.
10.8 Object Removal Detection
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.
Please refer to the Chapter 9.4 Intrusion Detection for operating steps to configure the
object removal detection.
The Threshold [5s-20s] in the Rule Settings defines the time of the objects removed from
the region. If you set the value as 10, alarm is triggered after the object disappears from
the region for 10s. And the Sensitivity defines the similarity degree of the background
image. Usually, when the sensitivity is high, a very small object taken from the region can
trigger the alarm.
Up to 4 rules can be configured.
10.9 Audio Exception Detection
Purpose:
Audio exception detection function detects the abnormal sounds in the surveillance scene, such as
the sudden increase / decrease of the sound intensity, and some certain actions can be taken when
the alarm is triggered.
Step 1 Enter the VCA settings interface.
Menu> Camera> VCA
Step 2 Select the camera to configure the VCA.
You can click the checkbox of Save VCA Picture to save the captured pictures of VCA
detection.
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