| 基于LiDAR点云数据的水体轮廓线提取方法研究 |
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| 引用本文： | 王宗跃,马洪超,徐宏根,彭检贵.基于LiDAR点云数据的水体轮廓线提取方法研究[J].武汉大学学报(信息科学版),2010(4). |
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| 作者姓名： | 王宗跃 马洪超 徐宏根 彭检贵 |
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| 作者单位： | 集美大学计算机工程学院;武汉大学遥感信息工程学院;中国国土资源航空物探遥感中心; |
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| 基金项目： | 国家863计划资助项目(2006AA12Z101,2009AA12Z107) |
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| 摘 要： | 提出一种基于机载激光雷达点云数据提取水体轮廓线的方法。采用双层格网模式提取较窄的水体;以朝向水体的边界点作为拟合轮廓线的关键点提取更精确的轮廓线。实验表明,该方法可以较好地提取水体轮廓线。
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| 关 键 词： | LiDAR点云 水体 轮廓线 种子填充 连通域 |
A Method for Extracting Water Contour Lines from LiDAR Point Clouds Data |
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| WANG Zongyue, MA Hongchao XU Honggen PENG Jiangui.A Method for Extracting Water Contour Lines from LiDAR Point Clouds Data[J].Geomatics and Information Science of Wuhan University,2010(4). |
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| Authors: | WANG Zongyue MA Hongchao XU Honggen PENG Jiangui |
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| Institution: | WANG Zongyue1,2 MA Hongchao2 XU Honggen3 PENG Jiangui2(1 Computer Engineering College,Jimei University,185 Yinjiang Road,Xiamen 361021,China)(2 School of Remote Sensing , Information Engineering,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(3 China Aero Geophysical Survey , Remote Sensing Center for L, , Resources,31 Xueyuan Road,Beijing 100083,China) |
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| Abstract: | A contour lines extraction method for 3D water body from LiDAR point clouds data is proposed in this paper.First,all points are divided into rough and equidistant grids whose number,average elevation and height standard deviation of every grid points will be calculated later.Then,confirm the grids belonged to specific water areas with strict conditions according to four characters of the point clouds in the waters: the low density,the similarity of elevation in all points,the weak echo intensity,water surfa... |
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| Keywords: | LiDAR points clouds water body contour lines seed filling connected domain |
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