VIVOTEK
User's Manual - 117
Applications > Tampering detection
This section explains how to set up camera tamper detection. With tamper detection, the
camera is capable of detecting incidents such as redirection, blocking or defocusing, or even
spray paint.
Please follow the steps below to set up the camera tamper detection function:
1. Click to select the checkbox before tampering conditions: Tampering detection, Image too
dark, Image too bright, and Image too blurry. Enter the tamper trigger duration. (10 sec. ~
10 min.) The tamper alarm will be triggered only when the tampering factor (the difference
between current frame and pre-saved background) exceeds the trigger threshold. Conditions
such as image too dark, too bright, or too blurry (defocused) can also be configured as
tampering conditions. The Trigger threshold determines how sensitive is your tampering
detection setting.
2. You can configure Tampering Detection as a trigger element to the proactive event
configurations in Event -> Event settings -> Trigger. For example, when the camera is
tampered with, camera can be congured to send the pre- and post-event video clips to a
networked storage device. Please refer to page 100 for detailed information.
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