deleteTrack

Delete existing track

Since R2021a

Syntax

deleted = deleteTrack(tracker,trackID)

Description

deleted = deleteTrack(tracker,trackID) deletes the track specified by trackID in the tracker.

Examples

Delete track in radarTracker

Create a track using detections in a radarTracker.

tracker = radarTracker 

tracker = 
  radarTracker with properties:

                  TrackerIndex: 0
       FilterInitializationFcn: 'initcvekf'
           AssignmentThreshold: [30 Inf]
                  MaxNumTracks: 100
              MaxNumDetections: Inf
                 MaxNumSensors: 20

                  OOSMHandling: 'Terminate'

         ConfirmationThreshold: [2 3]
             DeletionThreshold: [5 5]

            HasCostMatrixInput: false
    HasDetectableTrackIDsInput: false
               StateParameters: [1x1 struct]

                     NumTracks: 0
            NumConfirmedTracks: 0

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: [6x1 double]
             StateCovariance: [6x6 double]
             StateParameters: [1x1 struct]
               ObjectClassID: 0
    ObjectClassProbabilities: 1
                  TrackLogic: 'History'
             TrackLogicState: [1 1 0 0 0]
                 IsConfirmed: 1
                   IsCoasted: 0
              IsSelfReported: 1
            ObjectAttributes: [1x1 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

tracker — radar tracker

radarTracker object

Radar tracker, specified as a radarTracker 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 R2021a