Combining Automated and Supervised
Tracking
It can be helpful to combine automated tracking with some supervised
trackers, especially when you would like to use particular features in the
image to define the coordinate system, to help the automated tracker with
problematic camera motions, to aid scene modeling, or to stabilize effects
insertion at a particular location.
Guide Trackers
Guide Trackers are supervised trackers, added before automated tracking.
Pre-existing trackers are automatically used by the automated tracking system
to re-register frames as they move. With this guidance, the automated tracking
system can accommodate more, or crazier, motions than it would normally
expect.
Unless the overall feature motion is very slow, you should always add
multiple guide trackers distributed throughout the image, so that at any
location in the image, the closest guide tracker has a similar motion. [The
main exception: if you have a jittery hand-held shot where, if it was
stabilized, the image features actually move rather slowly, you can use only a
single guide tracker.]
Note: guide trackers are rarely necessary, and are processed differently
than in previous versions of SynthEyes.
Supervised Trackers, After Automated
Tracking
You can easily add supervised trackers after running the automated
tracker. Create the trackers from the Tracker panel, adjust the coordinate
system settings as needed, then, on the Solver Panel, switch to Refine mode and
hit Go!
Converting Automatic Trackers to Supervised
Trackers
Suppose you want to take an automatically-generated tracker and modify it
by hand. You may wish to improve it: perhaps to extend it earlier or later in
the shot, or to patch up a few frames where it gets off track.
From the
Tracking Control Panel 
,
select the automatically-generated tracker(s) you want to work on, and unlock
them. This converts them to supervised trackers and sets up a default search
region for them.You can also use the To Golden button on the
Feature Control Panel 
to
turn selected trackers from automatic to supervised without unlocking them (and
without setting up a search region).Sometimes, you may wish to convert a number of automatic trackers to
supervised, possibly add some additional trackers, and then get rid of all the
other automatically-generated trackers, leaving you with a well-controlled
group of supervised trackers. The
Delete Leaden button on the
Feature Control Panel will
delete all trackers that have not been converted to golden.You can also use the
Combine trackers item on the Track Menu to combine a supervised tracker
with an automatically-generated one, if they are tracking the same
feature.
The Track/
Fine-tune
Trackers menu item re-tracks supervised trackers, to improve accuracy on
some imagery.
