基于多视角倾斜影像的DSM自动提取技术

Automatic DSM Extraction from Multi-view Oblique Images

基于多视倾斜影像的建模技术定位精度高,节省人力和物力,适用于大规模的城市三维建模。针对倾斜影像存在严重的几何畸变和辐射畸变,遮挡比较严重,自动提取DSM(数字表面模型)难度较大的问题,本文对影像连接点提取、光束法平差、影像密集匹配等技术进行研究,在分析倾斜影像特点的基础上提出了自动匹配生成DSM(数字表面模型)的新思路。

The 3D modeling technology based on oblique images is of high precision, and can save manpower and material resources. Since Oblique images contain serious geometric and radiation distortion and serious occlusion, it’s difficult to extract DSM(digital surface model) automatically. Through research on the technology of image connection point extraction, beam method adjustment and image density matching, this paper proposes a new way of automatically extracting DSM.