基于普通数码相机的露采矿储量动态检测系统

Opencast mine reserve trend inspection system based on ordinary digital camera

为促进矿产储量的合理开发和环境保护,国家对露采矿山储量实行动态检测。本文针对露采矿山储量检测工作现状和现有方法的不足,研究基于普通数码相机的矿山数字近景摄影测量关键技术和储量计算方法,并据此开发了露采矿山储量动态检测系统。系统采用经过标定的普通数码相机对矿山宕口摄影,通过影像畸变校正、相对定向、绝对定向、影像匹配等自动化处理,重建矿山开采宕口三维模型,再根据前期地形数据,计算矿山储量变化。系统的实际应用显著提高了储量检测的效率和精度。

For the purpose of rational exploitation of mine reserves and environmental conservation, the government carries out reserve trend inspection on opencast mine. In view of the deficiencies of current work conditions and methods of opencast mine reserve inspection, this paper researches on the key technique of digital close-range photogrammetry on mines based on ordinary digital cameras, and the reserve computation method. As a result, a system of opencast mine reserve trend inspection system is developed, which uses ordinary digital camera calibrated accurately to photograph the mine pits. After taking automatically data processing, such as image distortion correction, relative orientation, absolute orientation, stereo matching, etc., the 3D reconstruction of the pits is conducted. Together with the previous terrain data, the change of mine reserve is inspected. The practical application of the system remarkably improves the efficiency and accuracy of the reserve inspection.