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http://dx.doi.org/10.11108/kagis.2020.23.3.120

Selection of Optimal Band Combination for Machine Learning-based Water Body Extraction using SAR Satellite Images  

Jeon, Hyungyun (School of Earth and Environmental Sciences, Seoul National University)
Kim, Duk-jin (School of Earth and Environmental Sciences, Seoul National University)
Kim, Junwoo (School of Earth and Environmental Sciences, Seoul National University)
Vadivel, Suresh Krishnan Palanisamy (School of Earth and Environmental Sciences, Seoul National University)
Kim, JaeEon (School of Earth and Environmental Sciences, Seoul National University)
Kim, Taecin (School of Earth and Environmental Sciences, Seoul National University)
Jeong, SeungHwan (School of Earth and Environmental Sciences, Seoul National University)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.23, no.3, 2020 , pp. 120-131 More about this Journal
Abstract
Water body detection using remote sensing based on machine interpretation of satellite image is efficient for managing water resource, drought and flood monitoring. In this study, water body detection with SAR satellite image based on machine learning was performed. However, non water body area can be misclassified to water body because of shadow effect or objects that have similar scattering characteristic comparing to water body, such as roads. To decrease misclassifying, 8 combination of morphology open filtered band, DEM band, curvature band and Cosmo-SkyMed SAR satellite image band about Mokpo region were trained to semantic segmentation machine learning models, respectively. For 8 case of machine learning models, global accuracy that is final test result was computed. Furthermore, concordance rate between landcover data of Mokpo region was calculated. In conclusion, combination of SAR satellite image, morphology open filtered band, DEM band and curvature band showed best result in global accuracy and concordance rate with landcover data. In that case, global accuracy was 95.07% and concordance rate with landcover data was 89.93%.
Keywords
Water body detection; SAR; Cosmo-SkyMed; Morphology; Terrain information; Machine Learning; Landcover data;
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Times Cited By KSCI : 4  (Citation Analysis)
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