Track perspective, scale, or rotational shifts
For images with significant change in size and angle, you can try a few different strategies.
Use a larger search area
In the Behaviors Inspector, click the track’s disclosure triangle to display the Search Size parameter, then increase the value.
Lower the Fail Tolerance value
In the Behaviors Inspector, click the track’s disclosure triangle to display the Fail Tolerance parameter, then decrease the value. With a lower Fail Tolerance value, the tracker is more likely to find a false match. With a higher value, the tracker is more strict in finding a match.
Begin the analysis at the clip’s midpoint
Move the playhead to midpoint frame of the clip, and click Analyze in the Behaviors Inspector to track forward to the end frame of the clip; then return to the midpoint frame, click the Reverse checkbox in the Behaviors Inspector, and click Analyze to track backward to the beginning of the clip.