Canon VB-R11VE Operation Manual page 232

In the [Event] tab, configure the operations to be performed when "detected" mode is triggered.
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For details on settings, please refer to "Configure Operations for Triggered Detection ([Event] Tab)" (P. 227).
8 Click [Save settings].
The settings are saved to the camera.
In the message box displayed, click [Yes].
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If you keep control privileges, an ON event is triggered as "detected" mode and the camera does not
automatically track even when a subject is detected that meets tracking start conditions.
For the camera to automatically track moving objects, it is necessary to release control privileges.
Detection Status for Auto Tracking
All moving objects detected are shown with contour lines.
If a moving object is smaller than [Object Size (%)], its contour lines are white.
If the moving object is larger than [Object Size (%)], its contour lines take on the same color as the detection area,
indicating that "detected" mode has been triggered.
In "detected" mode, auto tracking starts and a polygon frame appears on the target object.
The camera will pan, tilt or zoom during auto tracking so the target object always appears at the center of the screen.
When [Enable auto zoom during tracking] is selected, the camera zooms in on the target and auto tracks.
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Contour Lines of Detected Moving Object
Detection Area