Coalesce Nearby Trackers Dialog

Coalesce Nearby Trackers Dialog

Trackers, especially automatic trackers, can wind up tracking the same feature in different parts of the shot. This panel finds them and coalesces them together into a single overall tracker.

Coalesce. Button. Runs the algorithm and coalesces trackers, closing the panel.

Cancel. Button. Removes any tracker selection done by Examine, then closes the dialog without saving the current parameter settings.

Close. Button on title bar. The close button on the title bar will close the dialog, saving the tracker selection and parameter settings, making it easy for examine the trackers and then re-do and complete the coalesce.

Examine. Button. Examines the scene with the current parameter settings to determine which trackers will be coalesced and how many trackers will be eliminated. The trackers to be coalesced will be selected in the viewports.

# to be eliminated. Display area with text. Shows how many trackers will be eliminated by the current settings. Example: SynthEyes found two pairs of trackers to be coalesced. Four trackers are involved, two will be eliminated, two will be saved (and enlarged). The display will show 2 trackers to be eliminated.

Defaults. Button. Restores all controls to their factory default settings.

Distance (hpix). Spinner. Sets the maximum consistent distance between two trackers to be coalesced. Measured in horizontal pixels.

Sharpness. Spinner. Sets the sensitivity within the allowable distance. If zero, trackers at the maximum distance are as likely to be coalesced as trackers at the same location. If one, trackers at the maximum distance are considered unlikely.

Consistency. Spinner. The fraction of the frames two trackers must be nearby to be merged.

Only selected trackers. Checkbox. When checked, only pre-selected trackers might be coalesced. Normally, all trackers on the current camera/object are eligible to be coalesced.

Include supervised non-ZWT trackers. Checkbox. When off, supervised (golden) trackers that are not zero-weighted-trackers (ZWTs) are not eligible for coalescing, so that you do not inadvertently affect hand-tuned trackers. When the checkbox is on, all trackers, including these, are eligible.

Only with non-overlapping frame ranges. Checkbox. When checked, trackers that are valid at the same time will not be coalesced, to avoid coalescing closely-spaced but different trackers. When off, there is no such restriction.