基于倾斜摄影实景三维模型的矿山地形图测绘技术分析

Analysis of Mine Topographic Map Surveying and Mapping Technology Based on Oblique Photographic Real 3D Model

传统测绘技术由于摄影镜头的原因会使模型产生一些误差,导致测绘精度较低,因此设计一种基于倾斜摄影实景三维模型的矿山地形图测绘技术。首先利用倾斜摄影技术,通过SIFT特征匹配算法、空中三角测量、纹理映射等一系列操作完成实景的三维建模,并对倾斜摄影相机在建模过程中产生的误差进行纠正,最后对像控点的布设方案进行实际设计。实验结果表明,设计的测绘技术的检查点误差明显小于传统技术的误差。

Traditional surveying and mapping technology will produce some errors in the model due to the photographic lens,resulting in lower surveying accuracy.Therefore,a mine topographic mapping technology based on the oblique photography real three-dimensional model is designed.First,use tilt photography technology to complete the 3D modeling of the real scene through a series of operations such as SIFT feature matching algorithm,aerial triangulation,and texture mapping,and correct the errors generated by the tilt photography camera during the modeling process,and finally control the image points The layout plan is actually designed.Experimental results show that the checkpoint error of the designed surveying and mapping technology is significantly smaller than that of the traditional technology.