Adding more tracking points to your scene improves the overall quality of the tracking.
In this section of the lesson, you start adding tracking points to the scene using a supervised tracking method. By the end of the lesson you add five more tracking points.
To make the tracking process quicker, you can use MatchMover's keyboard shortcuts to create the track and run the forward tracking.
The tracking begins then stop around frame 15. Track 02 appears in the Workspace and is also added to the track points in the Project window.
A window appears in the Workspace indicates that the tracking quality is too low for MatchMover to continue the trajectory.
The reason the tracking quality is so low is that the actor’s body hides the area you want track in the sequence.
The Parameters window now displays the parameters for the tracked point under the Track 02 tab.
Since the tracked point’s trajectory cannot continue to be tracked, you can change the status of last frame by setting it to an end keyframe. This means that MatchMover will not track forward past this frame.
The End status of the keyframe is indicated in the Track 02 Parameters window in the Status field.
As you advance, the tracked point and its trajectory is hidden between frames 16 and 28, then re-appears at frame 29. Since the track is likely to disappear again, this time behind another obstacle, you can track the point frame-by-frame using the Step-tracking mode.
At frame 31, a window appears indicating that the tracking quality is too low to continue tracking.
To check the quality of the track
Notice that MatchMover only plays the sections of Track 02 that have been tracked. The frames that could not be tracked because of obstacles in the scene are not played.
Repeat the steps in Supervised tracking to create five more tracking points. When you are finished, there should be a total of seven tracking points in your scene. You use these seven tracking points to Creating a coordinate system.