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Visualization and Analytics

Multi-object theater plots, detection and object tracks, and track metrics

Use theaterPlot to plot ground truth, coverages, detections, and tracks. Get error metrics for tracks using trackErrorMetrics. Analyze and compare performance of multi-object tracking systems using trackAssignmentMetrics, trackOSPAMetric, and trackGOSPAMetric.

Functions

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Visualization

`theaterPlot`	Plot objects, detections, and tracks in Scenario
`trackingGlobeViewer`	Virtual globe for tracking scenario visualization (Since R2021b)
`addCustomTerrain`	Add custom terrain data (Since R2022a)
`removeCustomTerrain`	Remove custom terrain data (Since R2022a)
`poseplot`	3-D pose plot (Since R2021b)
`PosePatch Properties`	Pose plot appearance and behavior (Since R2021b)
`timescope`	Display time-domain signals (Since R2020a)

Analytics

`trackAssignmentMetrics`	Track establishment, maintenance, and deletion metrics
`trackErrorMetrics`	Track error and NEES
`trackOSPAMetric`	Optimal subpattern assignment (OSPA) metric (Since R2019b)
`trackGOSPAMetric`	Generalized optimal subpattern assignment (GOSPA) metric (Since R2020a)
`trackCLEARMetrics`	CLEAR multi-object tracking metrics (Since R2023a)
`allanvar`	Allan variance (Since R2019a)
`magcal`	Magnetometer calibration coefficients (Since R2019a)

Blocks

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Analytics

Generalized Optimal Subpattern Assignment Metric	Calculate Generalized Optimal Subpattern Assignment Metric (Since R2021a)
Optimal Subpattern Assignment Metric	Calculate Optimal Subpattern Assignment Metric (Since R2021a)

Topics

Configure Time Scope MATLAB Object
Customize timescope properties and use measurement tools.

Featured Examples

Introduction to Tracking Metrics

While designing a multi-object tracking system, it is essential to devise a method to evaluate its performance against the available ground truth. This ground truth is typically available from a simulation environment or by using techniques like ground-truth extraction using manual or automated labeling on recorded data. Though it is possible to qualitatively evaluate a tracking algorithm using visualization tools, the approach is usually not scalable. This example introduces different quantitative analysis tools in Sensor Fusion and Tracking Toolbox™ for assessing a tracker's performance. You will also use some common events like false tracks, track swaps etc. encountered while tracking multiple objects to understand the strengths and limitations of these tools.

Open Live Script

Use theaterPlot to Visualize Tracking Scenario

Use the theaterPlot object to visualize various aspects of a tracking scenario.

Open Live Script

Inertial Sensor Noise Analysis Using Allan Variance

Use the Allan variance to determine noise parameters of a MEMS gyroscope. These parameters can be used to model the gyroscope in simulation. The gyroscope measurement is modeled as:

Open Script

Magnetometer Calibration

Magnetometers detect magnetic field strength along a sensor's X,Y and Z axes. Accurate magnetic field measurements are essential for sensor fusion and the determination of heading and orientation.

Open Script