Abstract
In a group of general geometric primitives, plane-based features are widely used for indoor localization because of their robustness against noises. However, a lack of linearly independent planes may lead to a non-trivial estimation. This in return can cause a degenerate state from which all states cannot be estimated. To solve this problem, this paper first proposed a degeneracy detection method. A compensation method that could fix orientations by projecting an inertial measurement unit’s (IMU) information was then explained. Experiments were conducted using an IMU-Kinect v2 integrated sensor system prone to fall into degenerate cases owing to its narrow field-of-view. Results showed that the proposed framework could enhance map accuracy by successful detection and compensation of degenerated orientations.
Original language | English |
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Article number | 935 |
Journal | Sensors (Switzerland) |
Volume | 18 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2018 Apr |
Bibliographical note
Funding Information:This work was partly supported by the Brain Korea 21 Plus Project of School of Electrical Engineering, Korea University, a National Research Foundation of Korea (NRF) grant (No. 2011-0031648) funded by the Ministry of Science and ICT (MSIT), a Korea Evaluation Institute of Industrial Technology (KEIT) grant (No. 10073166) funded by the Ministry of Trade, Industry and Energy (MOTIE), and a grant (No. 17NSIP-B135746-01) funded by the Ministry of Land, Infrastructure and Transport (MOLIT), Republic of Korea.
Funding Information:
Acknowledgments: This work was partly supported by the Brain Korea 21 Plus Project of School of Electrical Engineering, Korea University, a National Research Foundation of Korea (NRF) grant (No. 2011-0031648) funded by the Ministry of Science and ICT (MSIT), a Korea Evaluation Institute of Industrial Technology (KEIT) grant (No. 10073166) funded by the Ministry of Trade, Industry and Energy (MOTIE), and a grant (No. 17NSIP-B135746-01) funded by the Ministry of Land, Infrastructure and Transport (MOLIT), Republic of Korea.
Publisher Copyright:
© 2018 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords
- Degeneracy
- Inertial measurement unit (IMU)-Kinect integration
- Plane feature
- Pose estimation
- Simultaneous localization and mapping (SLAM)
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Atomic and Molecular Physics, and Optics
- Instrumentation
- Electrical and Electronic Engineering