How do I access detections assigned to a track by TrackerGNN?
1 view (last 30 days)
Show older comments
MathWorks Support Team
on 19 Oct 2021
Answered: MathWorks Support Team
on 19 Oct 2021
I am using "trackerGNN" from the Sensor Fusion and Tracking Toolbox as follows:
[confirmedTracks, tentativeTracks, allTracks, analysisInformation] = tracker(detections, T);
I would like to access measurements/detections that have already been assigned to tracks so that I can double check the algorithm's assignments, plot the measurements by track, et cetera. How can I do this?
Accepted Answer
MathWorks Support Team
on 19 Oct 2021
You can obtain this information by using the output "analysisInformation", which has a property called "Assignments". Hence, "analysisInformation.Assignments" contains the measurements/detections assigned to a track. The format of that field is:
[TrackID DetectionIndex]
The first column is a list of track IDs at the beginning of the step. The second column is the index of the detection that was assigned to this track. For instance, consider the following matrix:
[4 1; 5 3]
This would mean that track 4 was assigned "detections(1)", and track 5 is assigned "detections(3)". Note that the function you are using -- "trackerGNN" -- assigns, at most, a single detection to any track. This is a hard assignment pattern. Other trackers behave differently, so their "analysisInformation" struct will have a slightly different format.
0 Comments
More Answers (0)
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!