车载激光扫描的三维信息融合技术  

Three-dimensional information fusion technology based on vehicle-borne laser scanning

作　　者：刘济帆[1] 张雷[1] 王远飞[2] 束炯[2] 舒嵘[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083 [2]华东师范大学,上海200062

出　　处：《测绘科学》2012年第3期174-177,197,共5页Science of Surveying and Mapping

基　　金：华东师范大学地理信息科学教育部重点实验室开放基金(LGISEM0811)

摘　　要：本文针对具体应用领域,分析了传统三维量测手段的不足,提出了将激光扫描技术和定位定姿技术运用于车载平台获取三维信息的技术途径;概述了车载激光扫描的系统架构和工作原理,详细分析了激光点云与GPS数据、IMU数据及数字图像的多源信息融合算法;并对实验结果进行了分析。结果表明:该方法具有高效率、高精度、无需控制点、全自动化等技术优势,在数字城市建设、应急救灾等领域具有广阔的应用前景。In this paper, the disadvantages of traditional three-dimensional measuring methods were analyzed with specific applications, and the innovative technique was presented, which combined the laser scanning technology and the position and attitude determination technology into the vehicle-borne system. Secondly, the system architecture and working principles were summarized, and multi-source information fusion algorithms were analyzed in detail The algorithms include the fusion of the laser point cloud and the da- ta of GPS and IMU, and the fusion of the laser point cloud and the images. Finally, the experiment was introduced, and the results were discussed. Experimental results showed that the proposed method has many technical advantages such as high efficiency, high precision, without control points, and automaticity, which would have a good prospect of applications in many fields such as digital city construction, emergency rescue, disaster relief and so on.

关 键 词：三维信息 激光扫描 数据融合 坐标转换 

分 类 号：P208[天文地球—地图制图学与地理信息工程] P225.2[天文地球—测绘科学与技术]