摘要
针对多源异构点云融合中数据基准不一致、尺度和精度不同的问题,构建了测区地面控制、车载激光扫描、无人机建模一体化控制体系。以上海张江科学城为实验区域,利用车载激光扫描系统结合大疆M300无人机进行测区全息数据采集,通过一体化控制体系融合车载激光扫描地面点云和无人机密集匹配点云,生成城市空间各高度完整的点云模型。利用融合点云和倾斜摄影模型进行各类地物矢量特征提取,生产全要素地形图。结果表明,车载LiDAR和无人机一体化控制实现了多源异构点云高精度融合,生产的全要素地形图要素种类丰富,精度满足项目要求。车载LiDAR和无人机一体化控制的全息数据采集方法实现了多源点云数据融合,为全要素地形图生产与智慧城市建设提供了精细化数据支撑。
Aiming at the problems of inconsistent benchmarks,different scales and precisions in the fusion of multi-source heterogeneous point clouds,an integrated control system for survey area ground control,vehicle-mounted laser scanning,and UAV modeling is constructed.With Zhangjiang Science Park taken as an experimental area,the vehicle-mounted laser scanning system combined with the DJI M300 UAV is used to collect the survey area holographic data,the integrated control system is used to integrate the vehicle-mounted laser scanning ground point cloud and the UAV densely matched point cloud to generate complete point cloud model of each height in the urban space.Fusion point cloud and oblique photography model is used to extract vector features of various ground objects to produce full-element topographic maps.The result show that the integrated control of vehicle-mounted LiDAR and UAV achieves high-precision fusion of multi-source heterogeneous point clouds,and the production of full feature topographic maps has a rich variety of elements,and the accuracy meets the project requirements.The holographic data acquisition method integrated control of vehicle-mounted LiDAR and UAV realizes the fusion of multi-source point cloud data,and provides refined data support for the production of full feature topographic maps and the construction of smart city.
作者
高桂甫
任高升
王亚梅
周益
GAO Gui-fu;REN Gao-sheng;WANG Ya-mei;ZHOU Yi(Yancheng Geotechnical Investigation and Surveying Institute,Yancheng Jiangsu 224002,China;School of Geomatics Science and Technology,Nanjing Tech University,Nanjing Jiangsu 211816,China)
出处
《现代测绘》
2021年第5期45-49,共5页
Modern Surveying and Mapping
基金
江苏省地质矿产勘查局科研项目(2020KY03)
江苏省自然资源科技计划项目(2020064)
江苏省水利科技项目(2020061)
关键词
全要素地形图
全息测绘
一体化控制
多源点云融合
topographic map
holographic data
integration control
multi-source point cloud fusion
