User Manual

Classic Stabilizing Using the Point Tracker
For clips in which there are too many moving subjects for the Cloud Tracker to get a solid lock,
you need to track a very specific feature in order to successfully stabilize the image. In these
cases, it’s often faster to use the Point Tracker for stabilization.
To stabilize an image using the Point Tracker:
1 Open the Tracker palette, and choose Stabilizer from the Palette mode drop-down
menu. Select Classic Stabilizer from the option menu.
2 Choose Point Tracker from the Tracker Type drop-down menu at the bottom right of the
Tracker palette. This changes the available controls under the tracker graph.
3 Click the Add Tracker Point button to add a crosshairs to the Viewer, and drag it to a
high-contrast, angular feature you want to track that’s indicative of the overall motion
of the clip.
Using the Point Tracker
to stabilize an image
TIP: You can optionally add more than one Tracker crosshairs to track multiple
features, and DaVinci Resolve will attempt to stabilize as many dimensions as
are made possible by the additional trackers. One point lets you stabilize Pan
and Tilt. Two points lets you try to stabilize Pan, Tilt, and Rotation. Four points
lets you try to stabilize Pan, Tilt, Rotation, and Zoom.
4 Click the Track Forward button to track the clip forward (or Track Reverse if you’d rather
start from the end of the clip and work backward).
This analyzes the feature you chose to track with the crosshairs, but no stabilization is
yet applied.
5 Adjust the Strong parameter to reflect what kind of stabilization you want. If you want
to eliminate all possible motion from the shot, leave Strong set to 100. If you want to
use stabilization to smooth out the shot but leave some motion in the frame, reduce the
strong parameter to be less than 100 but greater than 0. This parameter is a multiplier,
so higher numbers reflect a higher percentage of smoothing being applied to the clip’s
range of motion, and lower numbers reflect a lower percentage of smoothing being
applied to the original range of motion.
6 If you’ve set the Strong parameter to a value less than 100 to calm the motion in the
shot, rather than lock the shot completely, you can also adjust the Smooth parameter
to mathematically smooth what motion remains in the shot. This lets you even out any
“wobbling” that you don’t want, while retaining the camera motion that you do want.
The Strong and Smooth parameters work together, so experiment with different values
in each parameter to get the result you need.
Chapter – 133 Sizing and Image Stabilization 2985