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Moving Object Detection And Tracking With Doppler LiDAR

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posted on 11.06.2019, 16:04 by Yuchi Ma
Perceiving the dynamics of moving objects in complex scenarios is crucial for smart monitoring and safe navigation, thus a key enabler for intelligent supervision and autonomous driving. A variety of research has been developed to detect and track moving objects from data collected by optical sensors and/or laser scanners while most of them concentrate on certain type of objects or face the problem of lacking motion cues. In this thesis, we present a data-driven, model-free detection-based tracking approach for tracking moving objects in urban scenes from time sequential point clouds obtained via state-of-art Doppler LiDAR, which can not only collect spatial information (e.g. point clouds) but also Doppler images by using Doppler-shifted frequencies. In our approach, we first use Doppler images to detect moving points and determine the number of moving objects, which are then completely segmented via a region growing technique. The detected objects are then input to the tracking session which is based on Multiple Hypothesis Tracking (MHT) with two innovative extensions. One extension is that a new point cloud descriptor, Oriented Ensemble of Shape Function (OESF), is proposed to evaluate the structure similarity when doing object-to-track association in MHT. Another extension is that speed information from Doppler images is used to predict the dynamic state of the moving objects, which is integrated into MHT to improve the estimation of dynamic state of moving objects. The proposed approach has been tested on datasets collected by a terrestrial Doppler LiDAR and a mobile Doppler LiDAR separately. The quantitative evaluation of detection and tracking results shows the unique advantages of the Doppler LiDAR and the effectiveness of the proposed detection and tracking approach.

Funding

The work was supported in part by the Army Research Office

History

Degree Type

Master of Science in Civil Engineering

Department

Civil Engineering

Campus location

West Lafayette

Advisor/Supervisor/Committee Chair

Jie Shan

Additional Committee Member 2

Melba M. Crawford

Additional Committee Member 3

James S. Bethel

Licence

Exports

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Licence

Exports