摘要
针对常规近景摄影测量工作量大、效率差、自动化程度低等缺点 ,作者把普通数码相机和经纬仪组合在一起 ,研制成功了多重交向式数字近景摄影测量系统。本系统能够在每一测站上同时进行测站点的导线测量和数字影像的拍摄 ,外业工作方便快捷 ;另外还着重介绍了系统的关键技术和内业数据处理方法 ,展示了本系统操作简单、自动化程度高、三维模型快速重建等优点 ;最后以虎丘塔为例 ,对实验成果进行了精度评定 ,结果证明本系统完全能满足虎丘塔三维可视化的要求。
A multi-intersection digital close range photogrammetric system is developed through combining the digital camera and theodolite to overcome the shortcomings in conventional close range photogrammetry.It can take traversing measurement and photography simultaneously in a traverse station.This paper discusses its key techniques and data processing methods.It has advantages of high automation and 3D model's quick reconstruction.Meanwhile the digital image precision is assessed as Huqiu Tower taken as a case study to prove that this system's precision can satisfy the demand of 3D visualization.
出处
《工程勘察》
CSCD
北大核心
2003年第5期54-56,共3页
Geotechnical Investigation & Surveying
