| 基于结构特征的遥感影像海岸码头分割方法 |
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| 引用本文： | 李正威,郭海涛,石朗,喻金桃,吴祯优,方绍磊.基于结构特征的遥感影像海岸码头分割方法[J].海洋测绘,2018(5):63-66. |
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| 作者姓名： | 李正威 郭海涛 石朗 喻金桃 吴祯优 方绍磊 |
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| 作者单位： | 解放军信息工程大学 地理空间信息学院,河南 郑州 450001 |
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| 基金项目： | 国家自然科学基金(41101396,41001262) |
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| 摘 要： | 在分析水边线对码头提取的作用和海岸码头的结构特征的基础上,提出了一种基于结构特征的遥感影像海岸码头分割方法。该方法在遥感影像水边线提取的基础上,利用道格拉斯-普克算法通过压缩得到关键节点,接着在节点中选取满足要求的凹点,然后依据海岸结构特征通过对凹点的筛选分割出海岸规则突出物,最后通过对规则突出物的分析验证得到海岸码头。实验结果表明,该方法能够从水边线中将码头区域分割出来,并且受停靠船舶等噪声影响较小,为下一步海岸码头的精确提取奠定了坚实基础。
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| 关 键 词： | 遥感影像 结构特征 水边线提取 码头提取 码头分割 |
A Segmentation Method of the Coastal Wharfs in Remote Sensing Image Based on Structural Features |
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| LI Zhengwei,GUO Haitao,SHI Lang,YU Jintao,WU Zhenyou,FANG Shaolei.A Segmentation Method of the Coastal Wharfs in Remote Sensing Image Based on Structural Features[J].Hydrographic Surveying and Charting,2018(5):63-66. |
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| Authors: | LI Zhengwei GUO Haitao SHI Lang YU Jintao WU Zhenyou FANG Shaolei |
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| Institution: | School of Surveying and Mapping,Information Engineering University,Zhengzhou 450001 ,China |
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| Abstract: | The effects of waterlines for extracting wharf and the structural features of wharf are analyzed,and a segmentation method of the coastal wharf in remote sensing images based on the structural features is presented.Douglas-Puck algorithm is used to obtain nodes.Then,the concave points,which meet the requirements are selected.Besides,coastal rules protrusions are segmented through screening the concave points based on the structural features of the coast.Finally,the coastal wharfs are got by analyzing and testing rules protrusions.The experiment results show that wharfs can be segmented from waterlines by this method,and there is less effect of noise produced by docked ships and other objects,which lays a solid foundation for the next accurate extraction of coastal wharfs. |
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