基于倾斜摄影测量的矿产地形三维可视化建模研究

对矿产地形进行三维可视化建模,指导地质勘探,提出基于倾斜摄影测量的矿产地形三维可视化建模方法,采用倾斜摄影测量进行矿产地形的三维图形重建,提取矿产地形的三维边缘轮廓特征量,采用稀疏性的模板特征匹配方法进行矿产地形三维可视化的块匹配,构建矿产地形的边界分布轮廓线,采用不规则三角网重建方法进行矿产地形三维可视化图像的视觉重构,结合倾斜摄影测量方法实现对矿产地形的三维离散点数据重构,提高对矿产地形三维可视化建模的精度。仿真结果表明,采用该方法进行矿产地形三维可视化建模的精度较高,视觉重构效果较好。

Research on 3D visualization modeling of mineral terrain based on inclined photogrammetry

The 3D visualization modeling of mineral terrain is carried out to guide geological exploration.A 3D visual modeling method of mineral terrain based on tilt photogrammetry is proposed.The 3D graphic reconstruction of mineral terrain is carried out by using tilting photogrammetry.The 3D edge contour feature of mineral terrain is extracted,and the block matching of 3D visualization of mineral terrain is carried out by using sparse template feature matching method,and the boundary distribution contour line of mineral terrain is constructed.Visual reconstruction of 3D visual image of mineral terrain is carried out by using irregular triangle network reconstruction method,and 3D discrete point data reconstruction of mineral terrain is realized by means of tilt photogrammetry,which improves the accuracy of 3D visual modeling of mineral terrain.The simulation results show that the 3D visual modeling of mineral terrain using this method has high accuracy and good visual reconstruction effect.