| 基于星载SAR影像的苏北地区海岸线提取研究 |
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| 引用本文： | 邱志伟,刘晓霞,章铭诚.基于星载SAR影像的苏北地区海岸线提取研究[J].地理空间信息,2021,19(1):4-7. |
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| 作者姓名： | 邱志伟 刘晓霞 章铭诚 |
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| 作者单位： | 江苏海洋大学海洋技术与测绘学院,江苏连云港 222005;江苏海洋大学海洋技术与测绘学院,江苏连云港 222005;江苏海洋大学海洋技术与测绘学院,江苏连云港 222005 |
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| 基金项目： | 水文水资源与水利工程科学国家重点实验室"一带一路"水与可持续发展科技基金资助项目;江苏省测绘地理信息局科研资助项目;江苏海洋大学2020年高等教育教学改革研究课题资助项目 |
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| 摘 要： | 介绍了K-means聚类分割法和形态学处理,并对比了几种边缘算子;针对Prewitt算子和Roberts算子在像素点邻近区域内受噪声影响较大、边缘检测效果不佳的问题,选用Canny算子提取海岸线.首先对SAR影像进行K-means算法、形态学处理,再采用Canny算子提取海岸线.与其他边缘提取算法相比,该方法提取的海岸...
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| 关 键 词： | K-means聚类分割法 形态学处理 Canny算子 |
Research on Extraction of Coastline in North Jiangsu Based on Spaceborne SAR Image |
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| Abstract: | In this paper,we introduced K-means clustering segmentation-algorithm and the morphological processing,and compared several edge operators.To solve the problems that the Prewitt operator and Roberts operator were strongly affected by noise in the vicinity of pixel points and the edge detection effect was poor,we used Canny operator to extract the coastline.Firstly,we used K-means algorithm and the morphology to process the SAR images.And then,we used Canny operator to extract the coastline.Compared with other edge extraction algorithms of the same type,the proposed method has good coastline continuity,excellent smoothness and high degree of coincidence with real coastline. |
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| Keywords: | K-means clustering segmentation algorithm morphological processing Canny operator |
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