Abstract
Laser scan matching serves an important role as pose estimation in autonomous navigation for mobile robots. As a classic approach, iterative closest point (ICP) finds corresponding point pairs in a brute-force way, which is time consuming. For eliminating the cost of searching the correspondence between the point pairs, polar scan matching (PSM) uses a matching bearing rule by making use of the laser measurements collected in polar coordinates. However, PSM might occur mismatching when the irrelevant region of the reference and current scans has a similar distribution on polar range. In order to obtain better results, we propose a novel laser scan matching method based on a new type of map representation using GP regression in polar coordinates. With this map representation, the corresponding point pairs can be found in a simple and efficient way. Based on these pairs, we get the robot pose by iteratively estimating the orientation and translation. For dense-point-scan data sets, our approach demonstrates an outstanding performance compared with traditional approaches like ICP and PSM in terms of both accuracy and efficiency.
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Acknowledgements
This paper has been supported by the National Natural Science Foundation of China (Grant No. 61673341), the National Natural Science Foundation of China (Grant No. 61703366), the Fundamental Research Funds for the Central Universities (2016FZA4023, 2017QN81006), National Key R&D Program of China (2016YFD0200701–3), the Project of State Key Laboratory of Industrial Control Technology Zhejiang University (No. ICT1913) and the Open Research Project of the State Key Laboratory of Industrial Control Technology, Zhejiang University, China (No. ICT1900312).
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Wang, Y., Li, B., Han, B., Zhang, Y., Zhao, W. (2020). Laser Scan Matching in Polar Coordinates Using Gaussian Process. In: Deng, Z. (eds) Proceedings of 2019 Chinese Intelligent Automation Conference. CIAC 2019. Lecture Notes in Electrical Engineering, vol 586. Springer, Singapore. https://doi.org/10.1007/978-981-32-9050-1_12
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DOI: https://doi.org/10.1007/978-981-32-9050-1_12
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