旋翼无人机倾斜摄影测量技术在三维实景建模中的应用

使用倾斜摄影测量技术构建三维实景模型是近年来测绘领域的研究热点之一,与传统的垂直摄影测量技术相比,在三维实景建模中具有建模效率高、自动化程度高和模型逼真的优势,尤其是在“数字城市”“智慧城市”建设中具有举足轻重的地位。本文以某区域三维实景建模项目为研究对象,使用旋翼无人机搭载南方测绘倾斜数字航空摄影相机采集研究区倾斜影像数据,进行三维实景建模,最终获得平面X精度为4.03 cm、Y精度为3.86 cm、高程Z精度为3.91 cm的三维实景模型,建模精度完全满足项目建设需求。

Application of Rotary-winged UAV Oblique Photogrammetric Technology on 3D Reality Modeling

The use of tilt photogrammetry technology to build 3D reality model is one of the hot spots in the field of surveying and mapping in recent years.As compared with traditional vertical photogrammetry technology,it has the advantages of high modeling efficiency,high degree of automation,and more realistic model in 3D reality modeling,especially its pivotal position in the construction of"digital city"and"smart city".Taking a regional 3D reality modeling project as the research object,this paper uses the rotary-winded UAV equipped with the tilt digital aerial photography camera of South Surveying and Mapping Instrument Co.,Ltd.to collect the tilt image data of the research area for 3D reality modeling.The produced 3D reality model has the horizontal accuracy of 4.03 cm and 3.86 cm at X and Y directions and vertical accuracy of 3.91 cm,which fully meet the requirements of project construction.