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High-precise extraction for water on the Loess Plateau region from high resolution satellite image |
| SUN Na1, GAO Zhiqiang1,2, WANG Xiaojing1, LUO Zhidong3 |
1. Beijing Datum Technology Development Co. Ltd., Beijing 100084, China;
2. Beijing Forestry University, Beijing 100083, China;
3. Monitoring Center of Soil and Water Conservation, Ministry of Water Resources, Beijing 100053, China |
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Abstract In the Loess Plateau region, it is difficult to extract the complex water automatically and accurately in a large area, and hence a new water extraction method is proposed in this paper, which combines the object-based image analysis and seeded region growing algorithm. In the first step, it uses object-based image analysis to extract the main part of the water body according to the different water features and form the seeds region of water area. Then based on the result, the seeds grew to the precise shape of water. Extraction result shows that the method is effective, high precise and high efficient.
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| Keywords
coal mine
subsidence disaster
remote sensing
dynamic monitoring
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Issue Date: 04 December 2017
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2017,
Vol. 29
