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《Marine Geology & Quaternary Geology》 2011-02
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INFORMATION EXTRACTION WITH REGION GROWING METHOD AND FRACTAL DIMENSION RESEARCH IN THE JIUDUANSHA TIDAL CHANNELS OF YANGTZE RIVER ESTUARY

GUO Yongfei1,HAN Zhen1,2,ZHANG Kun1 (1 College of Marine Sciences,Shanghai Ocean University,Shanghai 201306; 2 The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai 201306)  
As an important part of a tidal flat,tidal channels are critical to the understanding of topographic features of a tidal flat and its evolution.In this paper,the panchromatic band remote sensing data received by SPOT5 on May 7,2005 were used.The tidal channels information was extracted with the region growing method by selecting appropriate seed points and gray level threshold.Then the grid method was used to calculate fractal dimensions from the extracted tidal channel information.The results have provided a reference for the rational development and utilization of resources in Jiuduansha tidal flat.
【Fund】: 教育部科学技术研究重点项目(209047);; 上海市科委项目(08230510700)
【CateGory Index】: P737.1
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