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4 To position the tracker box on a different frame from the reference box, go to that frame and move
the tracker box over the pattern to track. To move only the tracker box, click anywhere outside the
reference box.
Resetting the Reference and Tracker Boxes
You can reset the Reference, Tracking or Shift values independently for the selected tracker or all these values
simultaneously, by selecting the appropriate option in the Reset box.
1 Do one of the following:
■ To reset the Reference values of the selected tracker, select Reset Ref from the Tracker box.
■ To reset the Tracking values of the selected tracker, select Reset Track from the Reset box.
■ To reset the Shift values of the selected tracker, select Reset Shift from the Reset box.
■ To reset the Reference, Tracking and Shift values of the selected tracker, select Reset from the Reset
box.
2 Click Confirm.
Resizing the Reference and Tracker Boxes
Resize the reference box to make it surround the feature you chose to track more closely. By only including
the recognizable feature in the box with no other details that may change throughout the clip, you minimize
the possibility of the tracker losing the reference point.
TIP Sometimes a small reference point does not give good results. Try enlarging the box to include more of the
selected feature. Note that the larger the box, the slower the analysing speed.
Resize the tracker box so that it is large enough to accommodate the most frame-to-frame movement of the
reference point. For example, if the movement of the reference point is mostly horizontal, you can increase
the width and reduce the height of the tracker box. If there is a large amount of movement both horizontally
and vertically, increase both the width and the height of the tracker box. Note that the smaller the tracker
box, the faster the analysis.
To resize the reference and tracker boxes:
1 Do one of the following:
■ To resize the reference box and tracker box interactively on the frame, press a resize handle on the
box and drag.
722 | Chapter 17 Stabilizing and Tracking