The tracking tools in arivis Vision4D are very good, but tracking results are unlikely to be perfect. A range of options are available if the results of the tracking operation are unsatisfactory:

• The first preferred option should be to try and improve either the segment detection parameters or the tracking parameters. Improving the results for the automated tracking reduces the time required to do the analysis and reduces the need for manual interaction.
• If neither the segmentation nor the tracking can be improved any further it may be that improving the acquisition to facilitate the analysis may be the next best option.
• Of course, acquiring new data is often not practical, and in any case, the acquisition results may be the best that are technically achievable, and in that case, manually editing the tracks is also a possibility.

The Track Editor can be found in the Objects menu.

In the Track editor, users can link, split, and merge tracks, as well as assign segments to tracks if they were missed, or manually remove individual segments incorrectly assigned to a track. 

In this example, we have two tracks that appear like they should be connected but are not:

In such cases, the first thing to do is double check that they are indeed tracks that should be connected as it could be that they only appear so due to the current visualisation parameters. Tracks could appear to be connected but shouldn't be because:

• The perspective suggests a continuation but a different angle would reveal otherwise.
• The two track segments may be temporally divergent and playing back through time to reveal the segments might reveal that they are not in fact connected.

Once the connection is confirmed, editing the tracks is as simple as drawing a line between the last time point where the track was correct, and the next time point.

Further details on track editing are available in the help files.