基于机载激光雷达技术的三维景观自动建模方法  

Automatic 3D landscape modeling method based on airborne LIDAR technology

作　　者：李楠[1] 靳学胜 李飞[1] LI Nan;JIN Xuesheng;LI Fei(North China Institute of Astronautic Engineering,Langfang Hebei 065000,China;China People's Police University,Langfang Hebei 065000,China)

机构地区：[1]北华航天工业学院,河北廊坊065000 [2]中国人民警察大学,河北廊坊065000

出　　处：《激光杂志》2022年第2期163-167,共5页Laser Journal

基　　金：国防基础科研计划学科支持项目(No.JCKY2018407C006);河北省科技厅软科学研究及科普专项(No.18K50110D)。

摘　　要：当前三维景观建模方法存在建模精度低,误差大,而且实时性差等不足,为了提高三维景观建模精度,克服当前三维景观建模方法存在的局限性,提出了基于机载激光雷达技术的三维景观自动建模方法。首先分析三维景观建模的工作原理,找到影响三维景观建模效果的因素,然后采用机载激光雷达技术采集景观的相关数据,并引入虚拟现实技术构建三维景观模型,最后与其他方法进行了三维景观建模的仿真实验,对比结果表明,研究方法对中误差最高为0.006 3 cm,观测误差最高为0.002 2 cm,重建精度在92.8%以上,建模效率在92%以上,获得了更加理想的三维景观建模效果。The current three-dimensional landscape modeling methods have disadvantages of low modeling accuracy, large error and poor real-time performance. In order to improve accuracy of three-dimensional landscape modeling and overcome the limitations of current three-dimensional landscape modeling methods, an automatic three-dimensional landscape modeling method based on airborne LIDAR technology is proposed. Firstly, the working principle of three-dimensional landscape modeling is analyzed to find out the factors that affect effect of three-dimensional landscape modeling. Then, the airborne LIDAR technology is used to collect relevant landscape data, and virtual reality technology is introduced to build three-dimensional landscape model. Finally, simulation experiments of three-dimensional landscape modeling and other methods are carried out. The comparison results show that the maximum mean square error of proposed method is 0.006 3 cm, the highest observation error is 0.002 2 cm, the reconstruction accuracy is higher than 92.8%, and the modeling efficiency is more than 92%, so a more ideal 3 D landscape modeling effect is obtained.

关 键 词：三维景观 模型构建 激光雷达 数据采集 噪声过滤 

分 类 号：TN208[电子电信—物理电子学]