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The Merge menu determines to which input connection the Tracking data is applied. When stabilizing an image to remove all motion, or smooth the motion, the Merge button must be set to BG Only.
Edges
The Edges menu determines whether the edges of an image that leave the visible frame are cropped, duplicated, or wrapped when the stabilization is applied. Wrapping edges is often desirable for
some methods of match moving, although rarely when stabilizing the image for any other purpose. For more information on the controls, see Chapter 117, “Tracker Nodes,” in the DaVinci Resolve Reference Manual or Chapter 55 in the Fusion Reference Manual.
Position/Rotation/Scaling
Use the Position, Rotation, and Scaling checkboxes to select what aspects of the motion are corrected.
Match Move Settings
Options for the Match Move settings include Pivot and Reference.
The Pivot Type for the stabilization is used to calculate the axis of rotation and scaling calculations. This is usually the average of the combined pattern centers but may be changed to the position of a single tracker or a manually selected position.
The Reference controls establish whether the image is stabilized to the first frame in the sequence, the last frame, or to a manually selected frame. Any deviation from this reference by the tracked patterns is transformed back to this ideal frame.
As a general rule, when tracking to remove all motion from a clip, set the Merge mode to BG Only, the Pivot Type to Tracker Average or Selected Tracker, and the Reference control to Start, End, or Select Time.
Smoothing Motion
When confronted with an image sequence with erratic or jerky camera motion, instead of trying to remove all movement from the shot, you often need to preserve the original camera movement while losing the erratic motion.
The Start & End reference option is designed for this technique. Instead of stabilizing to a reference frame, the tracked path is simplified. The position of each pattern is evaluated from the start of the path and the end of the path along with intervening points. The result is smooth motion that replaces the existing unsteady move.
The Reference Intermediate Points slider is displayed when Start & End is selected to enable the smoothing of motion