Title
Underwater Visual Acoustic SLAM with Extrinsic Calibration
Abstract
Underwater scenarios are challenging for visual Simultaneous Localization and Mapping (SLAM) due to limited visibility and intermittently losing structures in image views. In this paper, we propose a visual acoustic bundle adjustment system which fuses a camera and a Doppler Velocity Log (DVL) in a graph SLAM framework for reliable underwater localization and mapping. In order to fuse the vision with the acoustic measurements, an calibration algorithm is also designed to estimate extrinsic parameters between a camera and a DVL using features detected in scenes. Experimental results in a tank and an offshore wind farm show the proposed method can achieve better robustness and localization accuracy than pure visual SLAM, especially in visually challenging scenarios, and the extrinsic calibration parameters can be accurately estimated, even when initialized with a random guess.
Year
DOI
Venue
2021
10.1109/IROS51168.2021.9636258
2021 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS (IROS)
DocType
ISSN
Citations 
Conference
2153-0858
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Shida Xu100.34
Tomasz Luczynski200.34
Jonatan Scharff Willners331.71
Ziyang Hong400.68
Kaicheng Zhang500.34
Yvan Petillot614219.16
Sen Wang701.01