Paper Info
Title
Application of Unmanned Aerial Vehicles and Image Processing Techniques in Monitoring Underwater Coastal Protection Measures
Abstract
A prerequisite for solving issues associated with surf zone variability, which affect human activity in coastal zones, is an accurate estimation of the effects of coastal protection methods. Therefore, performing frequent monitoring activities, especially when applying new nature-friendly coastal defense methods, is a major challenge. In this manuscript, we propose a pipeline for performing low-cost monitoring using RGB images, accessed by an unmanned aerial vehicle (UAV) and a four-level analysis architecture of an underwater object detection methodology. First, several color-based pre-processing activities were applied. Second, contrast-limited adaptive histogram equalization and the Hough transform methodology were used to automatically detect the underwater, circle-shaped elements of a hybrid coastal defense construction. An alternative pipeline was used to detect holes in the circle-shaped elements with an adaptive thresholding method; this pipeline was subsequently applied to the normalized images. Finally, the concatenation of the results from both the methods and the validation processes were performed. The results indicate that our automated monitoring tool works for RGB images captured by a low-cost consumer UAV. The experimental results showed that our pipeline achieved an average error of four pixels in the test set.
Year
DOI
Venue
2022
10.3390/rs14030458
REMOTE SENSING
Keywords
DocType
Volume
unmanned aerial vehicle (UAV), coastal monitoring, image processing, object detection, underwater reef
Journal
14
Issue
Citations 
PageRank 
3
0
0.34
References 
Authors
0
9
Name
Order
Citations
PageRank
Jakub Sledziowski100.34
Pawel Terefenko201.35
Andrzej Giza300.68
Pawel Forczmanski43414.21
Andrzej Lysko500.34
Witold Macków600.34
Grzegorz Stepien700.34
Arkadiusz Tomczak800.68
Apoloniusz Kurylczyk900.68