| 基于直线特征检测的道路边线自动提取方法 |
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| 引用本文： | 闫兆进,孟丽娜.基于直线特征检测的道路边线自动提取方法[J].测绘工程,2017,26(3). |
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| 作者姓名： | 闫兆进 孟丽娜 |
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| 作者单位： | 1. 山东科技大学 测绘科学与工程学院 ,山东 青岛,266590;2. 中国民航大学 机场学院 ,天津,300300 |
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| 摘 要： | 针对如何从车载激光点云数据中快速、准确地提取道路边线的问题,本文提出一种基于直线特征检测的道路边线自动提取方法。首先对原始点云进行地面滤波,删除非地面点,获取包含道路信息的地面点云,接着把点云投影到二维图像上,根据反射强度获得平均强度图像,对平均强度图像进行LSD直线检测,获得道路边线的直线段,然后进行直线连接,把检测出来的短线段连接成长直线,最后根据直线特征提取出道路边线,并且利用定量指标对提取结果进行定量分析。实验证明,该方法提取的道路边线具有较高的准确率和完整性。
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| 关 键 词： | 车载激光扫描 点云 道路边线 自动提取 LSD直线检测 定量分析 |
Automatic extraction method of road sideline based on linear feature |
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| YAN Zhaojin,MENG Lina.Automatic extraction method of road sideline based on linear feature[J].Engineering of Surveying and Mapping,2017,26(3). |
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| Authors: | YAN Zhaojin MENG Lina |
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| Abstract: | To quickly and accurately extract the road sideline from vehicle-borne laser point clouds ,this paper puts forward an automatic extraction method .First ,this paper filters the ground of original point clouds and removes non-ground points to obtain the ground point clouds that contain road information ;second ,transforms point clouds into 2D image based on average intensity projection ;third ,detects the road sideline segment edges in image by LSD algorithm ;then ,the short line segments are connected to the long line through the line connection ;finally ,extracts road sidelines through the line features .And ,the quantitative indicators used in the extraction results are quantitatively analyzed .The experimental results show that this method has high accuracy and integrity . |
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| Keywords: | vehicle-borne laser scanning point cloud road sideline automatic extraction LSD line detection quantitative analysis |
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