| 利用激光三角法进行快速车辙检测 |
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| 引用本文： | 李清泉,雷波,毛庆洲,傅智能.利用激光三角法进行快速车辙检测[J].武汉大学学报(信息科学版),2010(3). |
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| 作者姓名： | 李清泉 雷波 毛庆洲 傅智能 |
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| 作者单位： | 武汉大学交通研究中心;武汉大学电子信息学院;武汉武大卓越科技有限责任公司; |
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| 基金项目： | 国家科技支撑计划资助项目(2008BAK49B02); 国家863计划资助项目(2007AA12Z241); 测绘遥感信息工程国家重点实验室专项研究基金资助项目 |
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| 摘 要： | 为了实现实时车辙测量及绘制足够密集的路面剖面线,分别设定全局和局部阈值,利用局部梯度极大值及邻域灰度进行激光线判断和提取;提出了基于Delaunay三角网的标定点网格建立及测量点的物方坐标反算方法。实验路段的检测结果表明,车辙检测仪的检测结果与人工检测结果符合得较好,可以作为路面车辙测量的可靠工具。
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| 关 键 词： | 激光三角法 标定 车辙 Delaunay三角网 |
A Fast Method for Pavement Ruts Measuring with Laser Triangulation |
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| LI Qingquan LEI Bo, MAO Qingzhou FU Zhineng.A Fast Method for Pavement Ruts Measuring with Laser Triangulation[J].Geomatics and Information Science of Wuhan University,2010(3). |
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| Authors: | LI Qingquan LEI Bo MAO Qingzhou FU Zhineng |
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| Institution: | LI Qingquan1 LEI Bo1,2 MAO Qingzhou1 FU Zhineng3(1 Transportation Research Center,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(2 School of Electronic Information,China)(3 Wuhan Wuda Zoyon Science , Technology Co.Ltd.,Science , Technology Park of Wuhan University,Wuhan 430223,China) |
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| Abstract: | A method for fast pavement ruts detection and system calibration with laser triangulation was proposed and implemented on a vehicle-borne road laser rut-meter.For real-time ruts measuring and satisfyingly dense road profiling,the global and local thresholds were applied and the local maxim grade values and neighbor gray values were calculated to detect and extract laser lines.A method of calibration modal creation based on a Delaunay triangulation was proposed to backproject the world coordinates of laser p... |
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| Keywords: | laser triangulation calibration pavement rut Delaunay triangulation |
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