基于地面LiDAR的建筑物精细化三维重建及精度分析  

Fine 3D Reconstruction and Accuracy Analysis of Buildings Based on Ground LiDAR

作　　者：鲍国[1,2] 张书毕 陈强[3] 郑有雷 陈春 BAO Guo;ZHANG Shubi;CHEN Qiang;ZHENG Youlei;CHEN Chun(Air Force Logistics College,Xuzhou 221000,China;School of Environment and Spatial Informatics,China University of Mining and Technology,Xuzhou 221116,China;Jining No.3 Coal Mine,Yankuang Energy Group Co.,Ltd.,Jining 272169,China)

机构地区：[1]空军勤务学院,江苏徐州221000 [2]中国矿业大学环境与测绘学院,江苏徐州221116 [3]兖矿能源集团股份有限公司济宁三号煤矿,山东济宁272169

出　　处：《金属矿山》2023年第9期140-144,共5页Metal Mine

基　　金：国家自然科学基金项目(编号:42074226)。

摘　　要：随着“实景三维中国”以及智慧矿山等建设的不断推进,对承载数字化建设基础数据的三维模型精细化程度提出了更高要求。基于地面LiDAR三维重建技术,提出了建筑物精细化三维重建方法。采用地面三维激光扫描仪获取建筑物的扫描数据,经过点云去噪、点云着色、多点点云拼接及坐标转换等处理,构建了基于三维激光点云的实景三维模型,并从位置精度和纹理结构信息角度对模型进行了建模质量评价。结果表明:基于地面LiDAR的建筑物三维重建方法构建的三维模型位置精度高,X方向中误差为±0.92 cm,Y方向中误差为±0.60 cm,平面中误差为±1.10 cm,高程中误差为0.77 cm;在结构纹理精度方面,能精细地表达出建筑物下部及内部的信息,纹理细腻。With the continuous advancement of the construction of"real 3D China"and smart mines,higher require-ments are put forward for the refinement of 3D models that carry the basic data of digital construction.Based on the 3D recon-struction technique of ground LiDAR,a refined 3D reconstruction method for buildings is proposed.The 3D laser scanner was used to obtain the scanning data of the building.After point cloud denoising,point cloud coloring,multi-point cloud stitching and coordinate transformation,a 3D model based on the 3D laser point cloud was constructed,and the modeling quality was e-valuated from the position accuracy and texture structure information.The results show that the position accuracy of the 3D model based on ground LiDAR is high,the median error of X direction is±0.92 cm,the median error of Y direction is±0.60 cm,the median error of plane is±1.10 cm,and the median error of elevation is 0.77 cm.In terms of structural texture accura-cy,it can accurately express the information of the lower part of building and the interior,and the texture is fine.

关 键 词：地面 LIDAR 实景三维模型 精细化建模 精度分析 智慧矿山 

分 类 号：TD17[矿业工程—矿山地质测量] P237[天文地球—摄影测量与遥感]