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Creating a point track

Lesson 2: Using supervised tracking

Adding tracking points

 

Getting Started > Tutorials > Lesson 2: Using supervised tracking > 

Editing a point track

To improve the quality of your hard track, you can adjust the location of a tracking point and re-run the tracking process.

To adjust tracking point positions

1. Using the time line controls, go to a frame where the track drifts.

   This is indicated by the red sections.

2. In the Workspace, click-hold the tracking point and move it in the direction that will improve the tracking such as closer to an inside corner of the gray X’s.

   Use the Magnifier window that appear around the point to help you adjust the point's position.

3. Release the mouse button.

   Notice that when you release the mouse button, MatchMover clears the end of the trajectory. That is because the tracked data is no longer compatible with new position of the point. This means that you must re-compute the trajectory based on the new point position.

4. With the track point selected, select 2D Tracking > Track Forward or press F3, which is the Track Forward keyboard shortcut.

   MatchMover calculates a new trajectory for the track.

   To make the track trajectory smoother, you can update the tracked data between the initial point and the point's new location by using bi-directional tracking.

5. Select 2D Tracking > Bidirectional or click the Run Track Full icon.

   You can check the smoothness of your edited track by centering your view on the current track.

6. Select View > Lock on Track or click the icon.
7. Play the image sequence in PingPong mode by clicking followed by .

   Notice that when the sequence plays back section of the sequence you have tracked, the view is locked to the motion of the edited track.

8. Stop the sequence playback by clicking the icon.
9. To get a close-up view of the track, press Ctrl+Alt and drag the mouse up and down to zoom in and out of the Workspace view. If you are not satisfied with the quality of the track, adjust the point and run the tracking again.
   TipIf you notice a jump in the trajectory, you can adjust the point position by pressing the arrow keys. Select Preferences > 2D Tracking to adjust the nudge step. Use shift to multiply the nudge step by 10. If needed, a key point is inserted at the current edited frame.