Adjusting tracking paths
You can fine-tune or modify the behavior of a tracking path by manually resetting track points. For more information on creating tracking paths, see Tracking motion of video objects.
To adjust tracking paths1 Select a video file on the Video Track and click the Track Motion button 
on the Toolbar.
on the Toolbar. 2 From the list of trackers, select the tracker that you want to adjust.
3 Drag the Scrubber to locate the point where you want to adjust the path.
4 Drag the tracker to the new key frame position.
5 Click the Track Motion button 
to retrack the path. The tracker continues tracking using the new key frame position.
to retrack the path. The tracker continues tracking using the new key frame position.
Adjusting the track points allows you to fine-tune or smoothen the movement of matched objects.
To define the tracking path duration1 Drag the Scrubber to the point where you want to start motion tracking. Click the Track in button 
.
.2 Drag the Scrubber to the point where you want to end motion tracking. Click the Track out button 
.
.The tracking path duration is defined.
To extend tracking path duration1 Drag the Scrubber to the untracked area where you want to end motion tracking.
2 Click the Track Motion button 
.
.The motion of the tracked object and the extended path are generated.
Dragging the Scrubber and clicking the Track in 
button removes the current path and marks a new starting point.
button removes the current path and marks a new starting point. To reset tracking paths• You can reset the current tracking path and select a new area to track by doing any of the following:
• Drag the tracker point to another location.
• Drag the Scrubber to another location and click the Track in button 
.
.• Click the Reset button 
.
. To show or hide trackers• Click 
or 
to show or hide trackers.
or to show or hide trackers. To add trackers1 Click the Add a new tracker button 
to add the second tracker. A new tracker appears on the screen and a new tracker is added to the list.
to add the second tracker. A new tracker appears on the screen and a new tracker is added to the list.2 Drag the tracker to the part of the video that you want to track.
In our example, the second tracker is dragged to a stationary fishing ladder on the lake.
3 Click the Track Motion button 
.
. If Show tracking path is selected, the paths of both trackers are displayed and the selected tracker is highlighted.
In the example, Tracker 1 tracks the boy while Tracker 2 tracks the stationary fishing ladder on the lake. Since the camera is panning to the right, the result shows the path of Tracker 1 moving to the right and the path of Tracker 2 moving to the left.
4 Click OK.
To remove a tracker, select a tracker and click the Remove tracker button 
.
. To rename trackers1 Select a tracker and click the Rename tracker button 
.
.2 Enter the new tracker name in the Rename Tracker dialog box.
3 Click OK.