User guide

Configuring the Camera Tampering

Properties

The camera tampering feature is a real-time automated feature that generates

an alarm whenever the camera is repositioned or out of focus.

Note

If you plan on using Nextiva VMS with the single/dual port encoders, you

cannot set an area of interest as described in the Nextiva Administrator Guide.

► To configure the camera tampering properties

1. Start the Web Interface.

2. From the tree, select Configuration >Video.

3. From the Camera Tampering tab, you can set the values of the following

parameters for each video input:

Out of Focus:Enable or disable the Out of Focus feature.

OOF Sensitivity:Set the sensitivity level from 1 (most sensitive) to

100 (no sensitive).

Refresh Rate:Set the refresh rate in frames per seconds.

Persistence:The number of analyzed frames that must be detected as

tampered to trigger an alarm. The values range from 1 to 1000.

Increasing the persistence level can reduce the number of false alarms.

4. Click Apply.

Chapter 5: Using the Web Interface for Configuration