Ganz PIXELPRO SERIES, Interface Manual

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Scene Change Detection
Scene Change Detection
The Scene Change Detection page allows the user to adjust the settings of the scene change
detection algorithm. The scene change detection module resets the tracking algorithm when
it detects a large persistent change in the image. This prevents the tracking algorithm from
detecting image changes as tracked objects which can be potential sources of false alarms.
There are 3 options for the scene change mode:

Automatic: Default setting. Uses the recommended settings.

Manual: Allows the user to adjust the parameters used by the scene change
detection algorithm.

Disabled: Scene change detection is disabled.
Note: In order to see the output of the scene change detection on the image, Scene Change
diagnostics metadata must be enabled on the VCA -> Advanced page. Please refer to
Advanced Settings for more information. It's only possible to see the detection diagnostic
data when in Manual mode.
Manual Scene Change Detection Settings
In the manual mode the following settings are available:

Changed Time : The length of time that the image must be persistently changed
before the scene change is triggered and the tracking algorithm is reset.

Changed Screen Area : Percentage area of the image which must be changed for the
scene change to be triggered and the tracking algorithm to be reset.