Based on SLAM laser scanning system,the point cloud data of the target building is collected in this paper,through point cloud denoising and resampling,the building target point cloud is obtained,and the feature extraction algorithm is used to extract the contour line,the building was modeled and compared using point cloud data direct modeling method and contour line modeling method,the accuracy is verified by using the 10 feature sizes obtained by the traditional total station.The experiment results show that the accuracy of the building model of the direct modeling method is 0.058 m,and the accuracy of the model based on the contour line is 0.032 m.The modeling accuracy based on the feature constraints of the building line is significantly higher than the direct modeling accuracy based on the point cloud data.It provides a method and reference for the application of SLAM laser scanning system in the establishment of 3D model of buildings.
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李猛,崔希民,马旭,李雨,闫瑜. SLAM激光扫描的建筑物建模方法与应用Building modeling method and application of SLAM laser scanning[J].激光与红外,2019,49(11):1299~1304 LI Meng, CUI Xi-min, MA Xu, LI Yu, YAN Yu.国家自然科学基金项目(No.51474217)资助[J]. LASER & INFRARED,2019,49(11):1299~1304