Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
ISSN-L : 1883-8944
Paper (In Japanese)
A NEW METHOD FOR BEACH BATHYMETRY USING A COMBINATION OF MULTIPLE DRONES
Syunya TOKUMARUMutsumi WATANABERyota MIZUSAKOShinya FUKUMOTOMasayuki KASHIMATaro KAKINUMATetsuya TANEDA
Author information
JOURNAL RESTRICTED ACCESS

2022 Volume 78 Issue 1 Pages 17-28

Details
Abstract

 Drone technology is expected to play an important role in various fields, including topographic survey, wave and current monitoring, lifesaving, etc. in the ocean. In the present paper, we propose a new method for bathymetry, with the combination of an unmanned aerial vehicle (UAV) and an unmanned surface vehicle (USV). First, the motion of the USV is evaluated using images obtained by the UAV. Second, the pixel shift values of the seabed are calculated through underwater images by the USV. Finally, according to these results, the water depth is acquired by applying a trigonometry. The experimental results obtained using a wave basin have shown the maximum estimation error of 1.1cm, indicating the effectiveness of the proposed method.

Content from these authors
© 2022 by Japan Society of Civil Engineers
Previous article Next article
feedback
Top