CinePlex v3 Manual - Plexon Inc

the object and the yellow rectangle is surrounding the object). To avoid this situation,
define an arena in which to track or use background subtraction.
2.5.4.3.3 Arena Defined.
This illustration shows a defined arena (in green) that the system will use to track
the animal. The arena excludes the background object so that the system will
never lock onto the object by mistake.
2.5.4.3.4 Background Object.
This illustration shows the background object with nothing else in the window.
The user may capture the image of this window to use for background subtraction.
Background subtraction allows the system to disregard the background
object or objects.
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