One-Point and Two-Point Axis Tracking

In both one-point and two-point tracking, you select the object that follows the pattern on the Action media by assigning the tracking data to its axis in Action.

To perform one-point or two-point tracking in Action Axis:

1. From the Action Axis menu's Tracking tab, select the media to be stabilized from the Use Media field (to stabilize the Back media, select 0).
2. In the Axis menu for the selected media, make sure that the motion path is disabled (Path button).
3. In the Tracking tab, enable Rotation, Scale or both, as needed. The choice depends on the movement of the object to track and on the camera movement in the clip.
4. In the Tracking Mode box, select Track and click the Enter Tracker button.

   The media is automatically loaded into the Stabilizer and the Stabilizer menu appears.

5. In the Stabilizer menu, enable Context to use the Action scene as the reference.
6. Position the tracker(s) over the pattern(s) that you want to track, and click Analyze to generate the tracking data. For one-point tracking, you use only one tracker to generate position information. For two-point tracking, you use a second tracker to generate rotation and/or scaling information. The Stabilizer obtains this information by comparing the position of Tracker2 to that of Tracker1.
   • Tracker1 follows the horizontal and vertical translation of the reference point. You should position Tracker1 over a point on the pattern that you want to track.
     Note: The position of the axis is synced with the position of Tracker1. Therefore, any existing animation on the Axis is overwritten by the tracking data.
   • Tracker2 tracks the rotation and/or the change in size of the pattern. In the first frame, the rotation is always 0 and the scaling factor is always 100%. In subsequent frames, a rotation and/or scaling factor is added if the relative position of the two trackers changes. You should position Tracker2 over a point that represents the rotation or change in size of the pattern.
   Note: You can fine-tune the tracking data if necessary. See Tracking Difficult Shots and Correcting Errors.
7. Once you are satisfied with the tracking, click Return.

   The Axis menu in Action reappears. The tracking data is applied to the Axis media.