1-point
stabilizing is useful when the motion you want to remove is horizontal/vertical
(side-to-side/up and down).
Hand-held camera and
helicopter shots nearly always have undesired horizontal or vertical
motion jitter.
In the following example,
the camera was bumped several times during filming which caused
unwanted camera motion along the Y axis.
To perform 1-point stabilizing:
NoteAlthough this example
uses the Reaction tool, any tool that has position and translation
parameter controls can be used to perform 1-point stabilization, such
as the Panner tool, 2D Transform, Warp 2D and the vertices in the
Garbage Mask and the Remove Dust tools.
- Play the footage to verify that you have
a good reference feature.
A decorative point at
the six o'clock position was chosen as the reference feature.
- Click Analyze Forward to track the selected
reference position in the footage.
- Drag a Reaction tool from the Tools tab
and place it on the dependency graph between the footage node and
the Output node.
- With the cursor over the Reaction node,
right-click and select Add Source.
- To associate a layer with the source
you just created, select the source layer from the Layer Editor.
At the bottom of the Layer Editor, select Bilinear and click Create.
- In the Reaction tab, under Position,
right-click inside the Y field and select Stabilize Position Y.
The Tracker Selector
appears.
- Select the Tracker Analyzer from the
list and click Link.
An expression is automatically
created linking the tracking data to the stabilizing filter for
position Y.
- Play the footage to view the result.
