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http://dx.doi.org/10.7780/kjrs.2016.32.5.11

Detection of Water Bodies from Kompsat-5 SAR Data  

Park, Sang-Eun (Department of Energy and Mineral Resources Engineering, Sejong University)
Publication Information
Korean Journal of Remote Sensing / v.32, no.5, 2016 , pp. 539-550 More about this Journal
Abstract
Detection of water bodies in land surface is an essential part of disaster monitoring, such as flood, storm surge, and tsunami, and plays an important role in analyzing spatial and temporal variation of water cycle. In this study, a quantitative comparison of different thresholding-based methods for water body detection and their applicability to Kompsat-5 SAR data were presented. In addition, the effect of speckle filtering on the detection result was analyzed. Furthermore, the variations of threshold values by the proportion of the water body area in the whole image were quantitatively evaluated. In order to improve the binary classification performance, a new water body detection algorithm based on the bimodality test and the majority filtering is presented.
Keywords
SAR; Water body; Kompsat-5; Image thresholding;
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