基于普通数码影像的露采矿山三维可视化分析

3D Visualization Analysis of Opencast Mine Based on Ordinary Digital Image

研究了基于普通数码影像的矿山三维可视化技术。首先将检校后的数码相机以物方控制的单模型摄影方式对目标拍摄,取得原始影像并逐一校正;然后自动进行像对定向、立体匹配,采集影像点云;最后根据影像匹配点云三维建模,并依据前期地形数据、终采境界设计图、地质勘察数据对露采矿山进行三维可视化分析,实现动态检测。

In order for better supervision and rational exploitation of opencast mines, the 3D visualization technology of mine based on ordinary digital images was studied in view of the drawbacks of current visualization analysis approaches. First of all, the target was taken pictures by a calibrated digital camera in the form of single-model photography, which was corrected in sequence afterwards. Then the orientation and stereo matching were performed automatically on the images to collect the point cloud. Finally, the 3D model was built according to the point cloud, and the 3D visualization analysis was conducted on the opencast mine on the basis of preliminary terrain data, terminal mining border design and geological survey data, therefore accomplishing dynamic inspection. The approach has been tested and applied in production practices.