| Issue |
MATEC Web Conf.
Volume 177, 2018
The 5th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management (ISOCEEN 2017)
|
|
|---|---|---|
| Article Number | 01008 | |
| Number of page(s) | 9 | |
| DOI | https://doi.org/10.1051/matecconf/201817701008 | |
| Published online | 04 July 2018 | |
Coastal Monitoring Program of Bathymetry Using Video Images Technique
1
Department of Ocean Engineering, Institut Teknologi Sepuluh Nopember, Surabaya,
Indonesia
2
Faculty of Engineering, Kyushu University, Fukuoka,
Japan
* Corresponding author: mzikro@oe.its.ac.id
The objective of this research is to investigate the capabilities of optical remote sensing to monitor bathymetry in nearshore area using video images. The technique is designed to extract wave number components based on variation of intensity of brightness at each pixel in the images using cross-spectral correlation approach. This approach is based on pixel array analysis that utilizes a nonlinear inverse method ‘Levenberg-Marquardt’. The technique is applied to the data collected at Hasaki beach in Japan from August to December 2006. The results indicate that the estimate of nearshore bathymetry is proved reasonable accurate near shoreline and breaking area where the differences between estimated and survey water depth are less than 10-30 cm.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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