2017

7 Click Analyze.
You can see a progress indicator beside the Track button. You can interrupt the analysis and resume
it by clicking Track again. After tracking has completed and you press Confirm, the Track button
changes to Update, and you can see the 2D tracks and 3D points in your image.
Filtering Trackers to Fine Tune the Track Analysis
Use the Filter settings to delete lower quality trackers.
To fine-tune the track analysis:
1 Use the Quality slider to adjust the number of good trackers kept. The higher the quality setting, more
low quality trackers are selected, such as trackers that drift off their initial reference point. Click Delete
to delete the selected trackers.
Trackers of lower quality may hinder the accuracy of the camera tracking.
NOTE After you have made a change that requires the 3D tracking analysis to be refined or updated, notice
that the LED next to the Refine and Update buttons turns yellow. This signifies that a Refine or Update is
required, but you do not have to perform it until you have completed your tracker selections.
2 Adjust the Short slider to select short duration trackers, that is, trackers that only track a feature for a
few frames. Click Delete to delete the selected trackers, leaving the longer duration trackers intact.
3 You can manually select and delete trackers from the image that you feel are not tracking properly.
Do one of the following:
■ To select an individual tracker, click the tracker, and then click Delete.
■ To select multiple trackers in the same area, Ctrl-drag a selection box over a series of trackers, and
then click Delete.
■ With Delete mode selected in the Tools box, select trackers in the image.
Action Analyzer | 665