| 基于Ping的Douglas-Peucker法抽稀阈值优化选取 |
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| 引用本文： | 张志伟,暴景阳,肖付民,上飞飞,马少华.基于Ping的Douglas-Peucker法抽稀阈值优化选取[J].海洋测绘,2015(2):9-12. |
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| 作者姓名： | 张志伟 暴景阳 肖付民 上飞飞 马少华 |
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| 作者单位： | 海军大连舰艇学院海洋测绘系;91650部队;92899部队 |
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| 摘 要： | 抽稀阈值的合理选取直接影响多波束测深数据抽稀结果和构建海底地形的表征能力,在基于Ping的Douglas-Peucker法多波束测深数据抽稀的基础上,提出了计算拟合曲线曲率值确定多波束测深数据抽稀阈值的方法。通过算例分析,验证了该方法在多波束测深数据抽稀中的适用性和有效性,取得了较好的抽稀效果。
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| 关 键 词： | 多波束测深 Douglas-Peucker算法 抽稀阈值 曲线拟合 海底地形 |
Selecting Optimum Thinning Threshold Value ofDouglas-Peucker Algorithm Based on Ping |
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| ZHANG Zhiwei,BAO Jingyang,XIAO Fumin,SHANG Feifei,MA Shaohua.Selecting Optimum Thinning Threshold Value ofDouglas-Peucker Algorithm Based on Ping[J].Hydrographic Surveying and Charting,2015(2):9-12. |
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| Authors: | ZHANG Zhiwei BAO Jingyang XIAO Fumin SHANG Feifei MA Shaohua |
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| Institution: | ZHANG Zhiw ei;BAO Jingyang;XIAO Fumin;SHANG Feifei;MA Shaohua;Department of Hydrography and Cartography,Dalian Naval Academy;91561 Troops;92899 Troops; |
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| Abstract: | The reasonable selection of thinning threshold value directly affects the thinning outputs of the MBESdata and the representational capacity of the seafloor topography construction.On the basis of the multibeamechosounding data thinning with Douglas-Peucker algorithm based on the ping,the paper puts forward themethod of calculating the curve fitting slope to confirm the thinning threshold value in the MBES data thinning.By instance analysis,the applicability and effectiveness of this method is verified in multibeam echosoundingdata thinning,and the better thinning effect is obtained. |
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