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. 2012 Oct 29;12(11):14489–14507. doi: 10.3390/s121114489

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© 2012 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 license (http://creativecommons.org/licenses/by/3.0/).

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Figure 13. — Duration of individual tracking. (a) Robot #1. (b) Robot #2. (c) Robot #3. The thin line indicates the time during which the pedestrian exits the sensing area of the robot. The bold line indicates the time during which the robot tracks pedestrians using the individual tracking.