•
Stationary Hold-on Time:
Defines the amount of time an object will continue to be tracked and
classified once it becomes stationary.
•
Minimum Object Size:
Defines the size of the smallest object that will be considered for tracking.
•
Sensitivity:
allows the object tracker to be tuned to ignore movement below a certain threshold.
Combined with the Blob Map burnt in annotation, which visualises the area of the scene the
object tracker is detecting movement, this value can be adjusted to filter out environmental
noise. The default setting is 4.
•
Detection Point:
Defines the tracking point that will be used to evaluate objects against rules.
– Automatic:
In
automatic
mode the detection point is automatically set based on how the
calibration is configured.
– Centroid
In
centroid
mode the detection point for each object is located at the middle of
the bounding box.
– Mid-bottom
In
mid-bottom
mode the detection point for each object is located along the
bottom line of the bounding box, in the centre.
Note:
Changing the detection point that is used by the system can effect the point at which objects will
trigger an event.
12.2 Scene Change
•
Duration:
Defines the period of time the scene needs to have changed before triggering the
scene change process.
•
Area Threshold:
Defines the percentage area of the scene that must change in order to trigger
the scene change process.
12.3 Confidence Threshold
•
Minimum detection confidence level:
Defines the minimum threshold to detect the objects.
12.4 Apply
Click
Apply
to save the current settings.
12.5 Clean up
Click
Clean up
to perform a clean up process.
52
Ganz GXi Series
VCA Interface Manual v1.0.66
07.12.22
Page 53
