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Cited by 293

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

R $^2$ LIVE: A Robust, Real-Time, LiDAR-Inertial-Visual Tightly-Coupled State Estimator and Mapping

Open access
Lin, Jiarong, Zheng, Chunran, Xu, Wei, Zhang, Fu·2021·IEEE Robotics and Automation Letters

Abstract

In this letter, we propose a robust, real-time tightly-coupled multi-sensor fusion framework, which fuses measurements from LiDAR, inertial sensor, and visual camera to achieve robust and accurate state estimation. Our proposed framework is composed of two parts: the filter-based odometry and factor graph optimization. To guarantee real-time performance, we estimate the state within the framework of error-state iterated Kalman-filter, and further improve the overall precision with our factor graph optimization. Taking advantage of measurements from all individual sensors, our algorithm is robust enough to various visual failure, LiDAR-degenerated scenarios, and is able to run in real time on an on-board computation platform, as shown by extensive experiments conducted in indoor, outdoor, and mixed environments of different scale (see attached video). Moreover, the results show that our proposed framework can improve the accuracy of state-of-the-art LiDAR-inertial or visual-inertial odometry. To share our findings and to make contributions to the community, we open source our codes on our Github.

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Metadata

Authors
Lin, J., Zheng, C., Xu, W., & Zhang, F.
Venue
IEEE Robotics and Automation Letters
Published
2021-10
Volume
6
Issue
4
Pages
7469-7476
ISSN
  • 2377-3766 (ISSN-L)
  • 2377-3774
OpenAlex
W3181051035
Cited by
293
References
27
FWCI
24.56
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: R $^2$ LIVE: A Robust, Real-Time, LiDAR-Inertial-Visual Tightly-Coupled State Estimator and Mapping. https://app.cochat.ai/papers/10.1109/lra.2021.3095515
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Lin, J., Zheng, C., Xu, W., & Zhang, F. (2021). R $^2$ LIVE: A Robust, Real-Time, LiDAR-Inertial-Visual Tightly-Coupled State Estimator and Mapping. IEEE Robotics and Automation Letters. https://doi.org/10.1109/lra.2021.3095515

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