基于倾斜摄影测量技术的困难地区测图研究

Research on Mapping of Difficult Areas Based on Tilt Photogrammetry

近年来,基于无人机倾斜影像的快速三维建模已成为测绘领域的新技术。本文根据倾斜摄影测量原理,利用Smart3D Capture构建云南师范大学校区的三维模型,对提取的特征点进行精度分析、建筑物精度、道路精度、花坛精度分别为:0.18 m、0.19 m、0.15 m,满足大比例尺精度要求,利用该方法对困难地区进行大比例尺数字测图,具有一定的应用价值。

In recent years,fast 3D modeling based on UAV tilt image has become a new technology in the field of surveying and mapping.According to the principle of tilt photogrammetry,the three-dimensional model of Yunnan normal University campus is constructed by using Smart3D Capture,and the precision analysis of the extracted feature points is carried out.The accuracy of building,road and flower bed are 0.18 m,0.19 m and 0.15 m,which can meet the requirements of large scale accuracy,and using this method to carry out large scale digital mapping in difficult areas has certain application value.