Nowadays, the method for detecting coastal wetlands by remote sensing still depends on manual extraction, and its long cycle makes the results not current; moreover, in most time, people must extract the whole map again, so the result can't satisfy the needs for management. To solve this problem, this paper proposed an efficient method for updating coastal thematic map based on the change detection technology by using remote sensing images. First, the difference and principal component method is used to get the change area; second, the change areas are classified by using the decision tree method; third, the old thematic map is updated based on the classification result of the change area, and therefore the later thematic map is obtained. In this paper, the authors chose the Shuangtai River Mouth National Nature Reserve as the study area, and the research result indicates that the method proposed in this paper is efficient, accurate and characterized by a simple process, thus deserving extension in resources investigation of coastal wetlands.
万剑华, 厉梅, 任广波, 马毅. 基于变化检测的滨海湿地图高效更新方法[J]. 国土资源遥感, 2013, 25(4): 85-90.
WAN Jianhua, LI Mei, REN Guangbo, MA Yi. Efficient method for updating coastal wetland map based on change detection technology. REMOTE SENSING FOR LAND & RESOURCES, 2013, 25(4): 85-90.
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