3D Compositing with Action > Action: Axis > Applying Tracking Data to an Axis > 
Tracking a Feature in the Back Clip
 
 
 

You can track the movement of a feature in the back clip and apply the tracking data to the selected axis in Action. The axis follows the movement of the feature in the back clip. You can also track the rotation or change in size of the feature. See One-Point and Two-Point Tracking.

TipTo help you view your tracking result without any objects blocking the view, enable the Context button in the Stabilizer menu. While similar to a result view, the context view allows you to see all of the Action scene, except for the selected node (and any children of the selected node).