摘要
以东莞市某中心广场为研究对象,采用多旋翼无人机搭载五镜头相机的方式采集目标区域倾斜影像数据,经过像控点测量、密集影像匹配、空中三角测量、区域网平差、密集点云生成、构建三角网、纹理映射、模型修饰等工作,实现了城市数字化三维建模及更新工作。最后以项目实例验证了倾斜摄影测量技术在实际测绘生产及数据更新维护中具有实用性;下一步,将在基于计算机技术的单体化技术、精修技术、自动化分层分类技术等方面进行深入研究。
This paper takes a central square in Dongguan as the research object,and uses the multi-rotor UAV with five-lens camera to collect the oblique image data of the target area.A series of data processing procedures such as image point measurement,dense image matching,aerial triangulation,regional network adjustment,dense point cloud generation,construction of triangulation network,texture mapping,and model modification are conducted to achieve urban digital 3D modeling and updating.The project experiment proves that the oblique photogrammetry technology has practicality in actual surveying production,data updating,and maintenance.In the future study,we will conduct in-depth research on computer technology-based monomeric model construction technology,refined technology,and automated hierarchical classification technology.
作者
沈昌兵
SHEN Changbing(The Survey Team of Qiaotou Town in Dongguan,Dongguan 523530,China)
出处
《测绘与空间地理信息》
2020年第7期176-180,183,共6页
Geomatics & Spatial Information Technology
关键词
无人机
倾斜摄影测量
测绘
数据更新
unmanned aerial vehicle
oblique photogrammetry
survey
data updating
