Analyzing One Frame at a Time or Tracking Manually

Track manually when the reference feature is hidden by another object for several frames and its motion is not predictable, or when the reference feature moves outside the range of the tracker box and its motion is not predictable.

If possible, set Type to Fixed when you track manually. The small errors you introduce when you position the tracker box manually are compounded when Type is set to Roaming.

To analyze one frame at a time:

On the Tracker panel, click the Analyze Forward One Frame button or the Analyze Backward One Frame button to analyze a single frame and go to the next frame.

To track manually:

1. Pause the analysis when the Tracker loses its reference feature.
2. Press Backspace to delete bad keyframes until you return to the last good keyframe.
3. Position the tracker box manually over the reference feature. Make sure the tolerance value is set so a keyframe is set for the frame.
4. Use the frame controls or the time slider in the Timeline to go to the next frame where the reference feature is visible.
5. Repeat steps 3 and 4 until the motion of the reference feature becomes predictable enough for the Tracker to track without manual intervention.
6. Restart the analysis.

The Tracker uses the positions you set manually for the tracker box when the analysis progresses through these frames.