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Affine-Invariant Geometric Constraints-Based High Accuracy Simultaneous Localization and Mapping
Joint Authors
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-09
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
In this study we describe a new appearance-based loop-closure detection method for online incremental simultaneous localization and mapping (SLAM) using affine-invariant-based geometric constraints.
Unlike other pure bag-of-words-based approaches, our proposed method uses geometric constraints as a supplement to improve accuracy.
By establishing an affine-invariant hypothesis, the proposed method excludes incorrect visual words and calculates the dispersion of correctly matched visual words to improve the accuracy of the likelihood calculation.
In addition, camera’s intrinsic parameters and distortion coefficients are adequate for this method.
3D measuring is not necessary.
We use the mechanism of Long-Term Memory and Working Memory (WM) to manage the memory.
Only a limited size of the WM is used for loop-closure detection; therefore the proposed method is suitable for large-scale real-time SLAM.
We tested our method using the CityCenter and Lip6Indoor datasets.
Our proposed method results can effectively correct the typical false-positive localization of previous methods, thus gaining better recall ratios and better precision.
American Psychological Association (APA)
Hua, Gangchen& Tan, Xu. 2017. Affine-Invariant Geometric Constraints-Based High Accuracy Simultaneous Localization and Mapping. Journal of Sensors،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1186768
Modern Language Association (MLA)
Hua, Gangchen& Tan, Xu. Affine-Invariant Geometric Constraints-Based High Accuracy Simultaneous Localization and Mapping. Journal of Sensors No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1186768
American Medical Association (AMA)
Hua, Gangchen& Tan, Xu. Affine-Invariant Geometric Constraints-Based High Accuracy Simultaneous Localization and Mapping. Journal of Sensors. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1186768
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1186768