Object Removal Detection; Audio Exception Detection - Vezco VZ-NVR3200-4HD Quick Start Manual

 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
 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.
Network Video Recorder User Manual
detection.