< Track back to start

Tracks the currently selected point(s) back to the beginning of the take if possible, given the current settings. It also does this in all camera views which have a 2D point in the currently active frame,

|< Track back one frame

Tracks the currently selected point(s) backward one frame, if possible, given the current settings. It does this in all camera views that have a 2D point in the currently active frame.

>| Track forward one frame

Tracks the currently selected point(s) forward one frame, if possible, given the current settings. It does this in all camera views that have a 2D point in the currently active frame.

> Track forward to end

Tracks the currently selected point(s) all the way to the end of the take, if possible, given the current settings. It does this in all camera views that have a 2D point in the currently active frame

Clear Tracked Points

Deletes any 2D information (including keyframes) for the currently selected point only.

Add Keyframe To Current Frame

Adds keyframes to all selected points in all camera views which have a 2D location on the current active frame. It also does this in all camera views which have a 2d point in the currently active frame.

Settings

When selected, the following settings are displayed in the Tracker pane.

Stop after N Frames, N=

When selected, you can specify the number of frames that are affected by Track backward (<) and Track forward (>).

Overwrite Existing Tracks

When selected, causes the Target Tracker functions (>, >|, < or |<) to overwrite existing 2D data for selected points during tracking.

Automatically Add Keyframes

When selected, if you use one of the tracking controls, a keyframe is added for all selected points before starting tracking if a keyframe does not already exist.

Stop On Next Keyframe

When selected, forces tracking to stop when a keyframe for any selected point in any camera view is encountered.

Allow Single Sensor Tracking

If selected, the Target Tracker attempts to reconstruct 3D points based upon tracking one detection only, by constraining the 3D point to lie on the ray associated with the single detection.

Break Threshold

Defines how well the best patch found in a new frame has to match the patch of the previous keyframe (and the next keyframe, if that has been defined).

The higher this number is, the more likely it is that tracking will stop, but the less likely it is that the target track will drift off course.

This value determines the minimum quality of the track. Lower values allow tracking to continue when the patch in the current view has changed in appearance from the patches on the keyframes.

The parameter value can vary between 0 and 1.0, with a default value of 0.9.

Update Timeline Every Frame

When selected, the continuity data indicating the quality of the target tracking results is updated in the Continuity Chart and Selected Point pane during target tracking.

Update 2D View Every Frame

When selected, any video or 3D view in your workspace is updated to show the frame being tracked. This option slows down the tracking process but enables you to monitor progress.