Research on the Method for Ring Waterside Line Information Extraction from Mudflat in the Yangtze River Estuary
HAN Zhen 1,2,3, GUO Yong-fei 1, LI Rui 1, ZHANG Kun 1
1. College of Marine Sciences of Shanghai Ocean University, Shanghai 201306, China; 2.Ocean Disaster Prevention and Reduction Institute, Shanghai Ocean University, Shanghai 201306, China; 3.Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China
Waterside line information extraction is a foundational task in studying mudflat sedimentation/erosion variation. This paper puts forward a new identification method more suitable for the ring waterside line information detection than the traditional Hough-like method. The authors firstly detected edges from the image segmentation achieved by the waterside line gray gradient information, then dilated and filled the interior by mathematical morphology to connect edges, and finally constructed segment-shaped structural elements to achieve a continuous and smooth waterside line. Experimental results show that not only the method is simple, but also the extracted waterside line is ideal.
韩震, 郭永飞, 李睿, 张琨.
长江口淤泥质潮滩环形水边线信息提取方法研究[J]. 国土资源遥感, 2010, 22(4): 64-66.
HAN Zhen, GUO Yong-Fei, LI Rui, ZHANG Kun. Research on the Method for Ring Waterside Line Information Extraction from Mudflat in the Yangtze River Estuary. REMOTE SENSING FOR LAND & RESOURCES, 2010, 22(4): 64-66.
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