User`s guide

Chapter 9 Motion Tracking
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• The Search region should be large enough to accommodate the movement of the Target
region in the subsequent frame. However, processing time increases as the size of the
Search region increases, so do not make the Search region unnecessarily large.
• If your image does not contain a high-contrast object to track, apply an Unsharp Mask
or Bright/Contrast filter to the Source track to increase the contrast for better results.
• Work at High Quality and Full Resolution for the best results.
• Unlike the Motion Tracker and Motion Stabilizer filters, Corner Pin Tracker must
always use all four trackers and are always on. Analyze All is selected by default. If
Analyze All is deselected, only the active tracker is analyzed. In addition, there is no
reason to average tracker data, since each tracker is used as a corner.
Working with the Motion Stabilizer
The Motion Stabilizer filter allows you to stabilize shaky video footage. The Stabilizer uses
motion trackers to analyze one or more specified regions of motion and then adjusts the
track’s position point to compensate. During playback, the motion appears smooth because
the track moves incrementally to offset the unwanted motion. You can also stabilize just a
portion of a track to correct isolated camera bumps.
The Motion Stabilizer filter includes a number of cross-references to the Motion Tracker
filter documentation. The Motion Stabilizer and Motion Tracker are very similar in structure
and usage. The main difference between the two is that the Motion Tracker allows you to use
motion data to affect a variety of shape and filter parameters in other tracks in the timeline,
while the Motion Stabilizer has a more narrow focus. Data created with the Motion
Stabilizer filter is only applied to the position of the source media.
You may want to stabilize media that is smaller than your Project size. There are two ways to
do this. First, you can place media in a 3D Plane track that is nested inside the Motion
Stabilizer Source track. Alternatively, you can analyze the media in the Stabilizer with the
Project size set to the same size as the media. Once you are satisfied with the tracking data,
reset the size of the Project in the Preferences window. The Stabilizer data is preserved.
Overview of Using the Motion Stabilizer
The steps below provide an overview of the Motion Stabilizer process. The sections that
follow provide detailed information on each step.