Journal
2020 5TH INTERNATIONAL CONFERENCE ON ADVANCED ROBOTICS AND MECHATRONICS (ICARM 2020)
Volume -, Issue -, Pages 419-424Publisher
IEEE
DOI: 10.1109/icarm49381.2020.9195383
Keywords
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Funding
- National Nature Science Foundation of China [U1713212, 61836005, 61702341]
- Natural Science Foundation of Guangdong ProvinceOutstanding Youth Program [2019B151502018]
- Technology Research Project of Shenzhen City [JSGG20180507182904693]
- Public Technology Platform of Shenzhen City [GGFW2018021118145859]
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Most approaches to robot visual localization rely on local, global visual or semantic information as observation. In this paper, we use the combination of global visual and semantic information as landmark in the observation model of Bayesian filters. Introducing the improved Gaussian Process into observation models with visual information, we extend the GP-Localize algorithm to high dimensional data, which in this way the Bayesian filters can consider all the historical data with spatiotemporal correlation to achieve constant time and memory for persistent outdoor robot localization. Our another contribution is to combine the above parts into a system for robot visual localization and apply it to two real-world outdoor datasets including unmanned ground vehicle (UGV) and unmanned aerial vehicle (UAV). Through the analysis of experimental results, the features using global vision and semantic results will be more accurate than using single features. By using the combined features and improved Gaussian process approximation method in Bayes filters, our system is more robust and practical than existing localization systems such as ORB-SLAM.
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