倾斜摄影测量与机载LiDAR点云融合在三维建模中的应用  

Application of tilt Photogrammetry and Airborne LiDAR Point Cloud Fusion in 3D Modeling

作　　者：贺丹 He dan(Chongqing Survey Institute,Chongqing 401121,China)

机构地区：[1]重庆市勘测院,重庆401121

出　　处：《城市勘测》2021年第3期77-80,共4页Urban Geotechnical Investigation & Surveying

摘　　要：基于倾斜摄影测量的三维建模是实景三维模型生产的重要手段。但是仅靠倾斜摄影得到的三维模型会因为大气噪声和建筑物遮挡等原因产生凸包、漏洞等缺陷。为解决此问题,本文将同测区的LiDAR点云数据与倾斜摄影数据融合建模,利用LiDAR点云分辨率高、抗干扰能力强等特点,对倾斜摄影三维模型的缺陷进行优化。实验结果表明,通过本文的方法,能够得到更精细的三维成果,提升了三维模型精度,增加了其可量可算和实际应用的可靠性。3D modeling based on tilt photogrammetry is an important means to product real scene 3D models.However,the 3D models obtained only by tilt photogrammetry will produce convex hull,loopholes and other defects due to atmospheric noise and building shielding.In order to solve this problem,this paper integrates the LiDAR point cloud data in the same measurement area with the tilted photography data,and optimizes the defects of the tilted photography 3D model by taking advantage of the LiDAR point cloud's high resolution and strong anti-interference ability.The experimental results show that the method presented in this paper can obtain more detailed 3D results,improve the accuracy of 3D models,and increase the reliability of their quantifiable computability and practical application.

关 键 词：实景三维模型 倾斜摄影 LIDAR 数据融合 

分 类 号：P231[天文地球—摄影测量与遥感] P225.2[天文地球—测绘科学与技术]