Ganz Security ZN1A-2D6DTMZ71 GXi Series VCA Interface Manual - Page 93
Scene Change Detection, Manual Scene Change Detection Settings, Automatic, Manual, Disabled
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Ganz GXi Series VCA Interface Manual V3.05.31.18 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: 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. If false scene change detections are a problem, the time and/or area should be increased so that large transient changes such as a close object temporarily obscuring the camera do not cause false scene change detections. 05-2018-A 92 | P a g e