变化区域三维坐标提取与展示方法研究

Research on the Extraction and Display Methods of 3D Coordinates for Change Areas

提出了一种整合倾斜摄影三维模型与数字高程模型(DEM)的地表变化监测方法,旨在提升露天矿山开采监管与环境保护的精确性和可操作性。通过比较两期DEM数据的高程差异,并结合二值化和形态学操作技术,精确提取地表变化范围的三维坐标,计算挖填方量和评估采矿合规性,并在三维模型中对结果进行可视化展示。结果表明,该方法自动化程度较高,能高效地对比分析DEM数据,显著提高地表变化监测的精度和效率,三维渲染技术增强了数据的直观性和易读性。该方法还可应用于土地退化、城市扩张和灾害评估等多种地表变化监测任务中。随着技术的发展,将引入更多自动化和智能化元素,为未来的资源管理和环境保护提供更有效的技术支撑。

In this study,we proposed a surface change monitoring method combining oblique photography 3D model with digital elevation model(DEM),aimed at enhancing the precision and operability of open-pit mining supervision and environmental protection.By comparing the elevation differences between two DEM datasets and combining binarization and morphological operation techniques,we accurately extracted 3D coordinates of surface changes,calculated of cut and fill volumes,assessed mining compliance,and visualized results in 3D model.The key findings demonstrate that this method is highly automated,enabling efficient comparative analysis of DEM data and significantly improving the accuracy and efficiency of surface change monitoring.Additionally,3D rendering technology can enhance the intuitiveness and readability of data.The method can also be applied to various tasks such as land degradation,urban expansion and disaster assessment.With further technological developments,it is expected that more automated and intelligent elements will be introduced,providing more effective technical support for future resource management and environmental protection.