5

Table Of Contents
Parameters in the Inspector
Source: To clear a Source well, drag the item away from the well and release the mouse
button. Drag a source object for the behavior to this well. The source object can be
another Stabilize behavior or a footage object.
Action pop-up menu: Choose from a list of tracking data (from other tracking behaviors)
in the project.
Note: When you select an option from the Action pop-up menu, the Add button, which
allows you to add trackers, becomes unavailable.
Movement: Click the Analyze button to begin the motion tracking analysis. When you
click Analyze, a status window appears and displays the tracking progress. To stop the
analysis, click the Stop button in the status window or press Esc.
When using the Stabilize behavior (without trackers), the track begins at the start of the
clip, rather than the current playhead position.
Quality: This pop-up menu defines the level of detail for the motion analysis. There are
two options:
Faster: This option allows for a faster operation, but motion analysis is less detailed.
Better: This option provides a more detailed analysis, but is slower. This is the
recommended option when the clip contains rotation.
Track Region: Select this checkbox to define a subject or area to be analyzed. A red
overlay appears in the Canvas. The area outside this overlay ignored. The track regions
onscreen controls are similar to a shapes onscreen controls.
For more information on using the Track Region, see Adjusting the Stabilize Behavior’s
Track Region.
Important: The Track Region must include some area in which the motion can be
extracted. It should not be used as a mask for the object to track.
Method: This pop-up menu defines how the stabilization is applied to the clip. There are
two options:
Stabilize: This method attempts to lock the motion of the principal subject in the shot
to eliminate motion. As a result, the background appears to move around the subject
being tracked.
Smooth: This method smoothes the apparent motion of the camera, while allowing
the general movement in the frame to proceed. It’s useful for removing jitter from a
camera move. When enabled, this mode has three sliders for each dimension that can
be smoothed.
1352 Chapter 22 Motion Tracking