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Fiducial Markers for Pose Estimation

Overview, Applications and Experimental Comparison of the ARTag, AprilTag, ArUco and STag Markers

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Abstract

Robust localization is critical for the navigation and control of mobile robots. Global Navigation Satellite Systems (GNSS), Visual-Inertial Odometry (VIO), and Simultaneous Localization and Mapping (SLAM) offer different methods for achieving this goal. In some cases however, these methods may not be available or provide high enough accuracy. In such cases, these methods may be augmented or replaced with fiducial marker pose estimation. Fiducial markers can increase the accuracy and robustness of a localization system by providing an easily recognizable feature with embedded fault detection. This paper presents an overview of fiducial markers developed in the recent years and an experimental comparison of the four markers (ARTag, AprilTag, ArUco, and STag) that represent the state-of-the-art and most widely used packages. These markers are evaluated on their accuracy, detection rate and computational cost in several scenarios that include simulated noise from shadows and motion blur. Different marker configurations, including single markers, planar and non-planar bundles and multi-sized marker bundles are also considered in this work.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of South Carolina, Columbia, SC, USA

    Michail Kalaitzakis, Sabrina Carroll, Anand Ambrosi, Camden Whitehead & Nikolaos Vitzilaios

  2. Department of Computer Science and Engineering, University of South Carolina, Columbia, SC, USA

    Brennan Cain

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  1. Michail Kalaitzakis
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  2. Brennan Cain
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  4. Anand Ambrosi
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Contributions

The authors confirm contribution to the paper as follows: study conception and design: M. Kalaitzakis and N. Vitzilaios; data collection: M. Kalaitzakis, B. Cain, S. Carroll, A. Ambrosi and C. Whitehead; analysis and interpretation of results: M. Kalaitzakis, B. Cain, S. Carroll and N. Vitzilaios; draft manuscript preparation: M. Kalaitzakis, B. Cain, S. Carroll, A. Ambrosi and C. Whitehead; manuscript revision: M. Kalaitzakis and N. Vitzilaios. All authors reviewed the results and approved the final version of the manuscript.

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Correspondence to Nikolaos Vitzilaios.

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A preliminary version of this paper has been presented at the 2020 International Conference on Unmanned Aircraft Systems (ICUAS 2020) and published in [1 ].

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Kalaitzakis, M., Cain, B., Carroll, S. et al. Fiducial Markers for Pose Estimation. J Intell Robot Syst 101, 71 (2021). https://doi.org/10.1007/s10846-020-01307-9

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