deleteTrack

Delete existing track

Syntax

deleted = deleteTrack(obj,trackID)

Description

deleted = deleteTrack(obj,trackID) deletes the track specified by trackID in the tracker or track fuser object, obj.

Examples

Delete track

Create a track using detections in a GNN tracker.

tracker = trackerGNN;
detection1 = objectDetection(0,[1;1;1]);
detection2 = objectDetection(1,[1.1;1.2;1.1]);
tracker(detection1,0);
tracker(detection2,1)

ans = 
  objectTrack with properties:

                     TrackID: 1
                    BranchID: 0
                 SourceIndex: 0
                  UpdateTime: 1
                         Age: 2
                       State: [6×1 double]
             StateCovariance: [6×6 double]
             StateParameters: [1×1 struct]
               ObjectClassID: 0
    ObjectClassProbabilities: 1
                  TrackLogic: 'History'
             TrackLogicState: [1 1 0 0 0]
                 IsConfirmed: 1
                   IsCoasted: 0
              IsSelfReported: 1
            ObjectAttributes: [1×1 struct]

Delete the first track.

deleted1 = deleteTrack(tracker,1)

deleted1 = logical
   1

Uncomment the following to delete a nonexistent track. A warning will be issued.

% deleted2 = deleteTrack(tracker,2)

Input Arguments

obj — Tracker or fuser object

trackerTOMHT object | trackerJPDA object | trackerGNN object | trackerPHD object | trackFuser object

Tracker or fuser object, specified as a trackerTOMHT, trackerJPDA, trackerGNN, trackerPHD, or trackFuser object.

trackID — Track identifier

positive integer

Track identifier, specified as a positive integer.

Example: 21

Output Arguments

deleted — Indicate if track was successfully deleted

1 | 0

Indicate if the track was successfully deleted or not, returned as 1 or 0. If the track specified by the trackID input existed and was successfully deleted, it returns as 1. If the track did not exist, a warning is issued and it returns as 0.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Version History

Introduced in R2020a