| 一种基于机载LiDAR点云的林间道路提取方法 |
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| 引用本文： | 胡澄宇,汪仁银,张金花,赵鸿彬,陈锐.一种基于机载LiDAR点云的林间道路提取方法[J].测绘工程,2017,26(12). |
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| 作者姓名： | 胡澄宇 汪仁银 张金花 赵鸿彬 陈锐 |
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| 作者单位： | 1. 四川水利职业技术学院,四川 成都,611230;2. 四川省第三测绘工程院,四川 成都,610500;3. 西南交通大学 地球科学与环境工程学院,四川 成都,611756 |
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| 基金项目： | 测绘地理信息公益性行业科研专项经费，四川省安全监管局安全生产科技项目，四川省安全监管局(四川煤监局)安全生产科技项目 |
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| 摘 要： | 基于林间道路的形态特征和支持向量机原理(SVM),提出一种从机载LiDAR点云数据中提取林间道路的方法。首先,选取末次回波去噪、栅格化,生成数字表面模型(DSM)和强度信息模型(DIM);然后,通过支持向量机对坡度信息进行分类,得到道路潜在区域;再对道路潜在区域进行强度信息的分类,得到含有少量噪声的初始道路区域;最后,利用形态参数对初始道路区域进行去噪、精化,得出最终道路区域。实验证明,该方法能较好地提取出道路区域。
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| 关 键 词： | 机载LiDAR 林间道路 分类提取 SVM |
Forest road extraction based on airborne LiDAR |
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| HU Chengyu,WANG Renyin,ZHANG Jinhua,ZHAO Hongbin,CHEN Rui.Forest road extraction based on airborne LiDAR[J].Engineering of Surveying and Mapping,2017,26(12). |
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| Authors: | HU Chengyu WANG Renyin ZHANG Jinhua ZHAO Hongbin CHEN Rui |
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| Abstract: | Based on morphological features of forest road and support vector machine(SVM ),this paper develops a classification method for forest road extraction from LiDAR point clouds. First,it deletes the outliers and generates the digital surface model (DSM ) and digital intensity models (DIM ).Next,it extracts the road with slope by support vector machine,for which a potential road area can be obtained. Then,it classifies the intensity of the potential road area by support vector machine,for which the initial road area with a few noises is generated.Finally,it smoothes the edge and controls the area size,for which the road points can be extracted.The experiment shows that the proposed algorithm can extract the road points cloud w ell. |
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| Keywords: | airborne LiDAR forest road extraction SVM |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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