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Table Of Contents
10 Motion Tracking and Stabilization
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3. Click the Tracking button.
Your Avid editing application begins to generate tracking data.
As the tracking operation proceeds:
- The Effect Preview monitor displays each frame or field on which tracking is being
performed, and shows the tracking data point for that frame or field as a cross.
- Your Avid editing application updates the timeline for each tracker to indicate the
status of the tracking data over time. If you are tracking where there is no existing
tracking data, your Avid editing application replaces the red bar at the bottom of the
line with a black bar at the top as data is generated, as shown in the following
illustration. If you are retracking where tracking data already exists, you see no
change in the tracker timeline, but the old tracking data is being replaced with new
data.
n
When you start tracking from the beginning of a tracking region, your Avid editing
application steps back one frame from the region boundary before it starts tracking. This is
normal behavior to ensure that motion at the region boundary is tracked correctly.
To stop a tracking operation, do one of the following:
t Press the space bar.
t Press Ctrl+period (Windows) or Command+period (Macintosh).
t Click any element of your Avid editing application’s interface.
The tracking operation stops.
Offset Tracking
You can use your Avid editing application’s offset tracking capabilities to create smooth
effect motion from tracking data that you generate using more than one target area. This lets
you track motion successfully when a single target area is not available for the full duration
of a segment.