2017

When tracking, the more track points you have in each frame, the smoother and more accurate the tracking
results. As you place the trackers on the image, consider the following guidelines:
■ Scatter the trackers by placing them on markings, corners, and shadows in the widest area possible. For
example, avoid placing all trackers on the floor; place them on walls and other objects in the scene, as
well as on the floor.
■ Create a sense of depth by positioning trackers on points that lie in different planes, as well as on points
located in the foreground and the background of the sequence.
■ Avoid tracking points such as highlights or a point where the foreground and a background object meet,
as they do not represent physical 3D points.
■ Balance the number of trackers within each frame of the sequence so that as you move through the clip,
some points leave the frame and other points appear in the frame. However, maintain a balance so that
too many points do not leave or enter the frame at the same time.
■ Avoid positioning the trackers in uniform areas or on linear edges where the track points may slide along
the edge.
To add manual trackers:
1 In the Analyzer menu, click the Add 2D Tracker button.
The Stabilizer tool opens and automatically displays the Analyzer media
2 Click Add Tracker.
A tracker will appear on the middle of the view.
3 Place the tracker over a trackable feature.
Add as many as you need to improve the tracking.
Manually added trackers will be assigned a number, incrementing from the first tracker. Manual trackers
can then be selected by either:
■ Selecting them directly on the screen or,
■ Selecting the corresponding Tracker button.
4 Click Analyze.
5 Click Return when done to return to the Analyzer menu.
The trackers will now be visible in the Analyzer view in a different color from the automatically
generated trackers.
NOTE Manually added trackers have persistence. They cannot be filtered, and they will not be deleted in a reset.
However a tracker can be manually deleted by first selecting it, and in the Fine Tuning section, clicking Delete.
Adding an Analyzer Node
When you add a Stereo or Mono Analyzer in Action, a number of nodes are added to the schematic.
To add an analyzer to a scene:
1 From the Media list, select the back or front/matte media that you want to analyze. If you want to
analyze a stereo clip, select the left clip, then press Ctrl and select the right clip (you cannot select
Back media for a Stereo Analyzer).
2 Do one of the following:
■ Drag the Analyzer Mono or Analyzer Stereo node from the node bin and place it in the schematic.
■ Double-click the Analyzer Mono or Analyzer Stereo node. You do not need to be in Schematic view
to add a node in this manner.
Action Analyzer | 649