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. 2019 Aug 26;19(17):3702. doi: 10.3390/s19173702

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Figure A1 — Tracking results for frames 1, 63, 126, 189, 252, and 315 for the PCE 50 (optical video) case. The vehicle is SUV. Most of the captured frames do not have detection. Dusts can be seen in some frames and have serious impacts on the tracking and classification performance. (a) 1000 m; (b) 2000 m; (c) 2500 m; and (d) 3500 m.

Figure A1 — Tracking results for frames 1, 63, 126, 189, 252, and 315 for the PCE 50 (optical video) case. The vehicle is SUV. Most of the captured frames do not have detection. Dusts can be seen in some frames and have serious impacts on the tracking and classification performance. (a) 1000 m; (b) 2000 m; (c) 2500 m; and (d) 3500 m.