2009

During tracking, the selected feature at a keyframe is sampled and that feature
becomes the search target for subsequent frames. Using any adjusted search
bounds up until the next keyframe, provides the start point, target feature,
and search bounds box for the frames that follow.
The position data for each frame in each gizmo can be one of three possibilities:
■ A keyframe defining a new start position, target feature image, and search
bounds box.
■ A tracked position.
■ Unknown.
All frame positions except the first are initially unknown and will be named
as tracking proceeds or gizmos are positioned. When you manually set a
keyframe, any previously tracked positions following that keyframe up until
the next keyframe are deleted and so become unknown. The Complete Tracking
button in the Batch Track rollout searches for unknown positions in the
currently enabled trackers and tracks those frames. The Check Status button
in the same rollout checks for any currently unknown positions as well as
tracking errors. See
Batch Track Rollout on page 3838.
Camera Tracker: Movie Stepper Rollout
Utilities panel > Utilities rollout > More button > Utilities dialog > Camera
Tracker > Movie Stepper rollout
The Camera Tracker utility's Movie Stepper rollout browses through the movie
during the tracking phase either to set start and stop frames, to review tracking
results or to manually perform a track over a sequence of frames. The Movie
Stepper rollout consists of a frame counter, a set of stepper buttons, and some
option check boxes.
Camera Tracker Utility | 3835