摘要
针对传统的RTK土方测量工作由于作业方式简单,仪器的智能化程度不高,容易受到复杂地形的限制,造成工期延误,成本增加等问题,将倾斜摄影测量技术应用在土方计算中。详细介绍了倾斜摄影测量技术结合PhotoScan软件构建三维模型的过程,利用ArcGIS和南方Cass为数据处理平台,对两种土方计算的结果进行了精度分析,并针对无人机像控点的布设原则要求提出了相关要求,对密集点云的分类和非地面区域高程点的提取做了优化处理。结果表明:将倾斜摄影测量应用于土方计算不仅很大程度提高了作业效率,节省了生产成本,而且土方计算的精度也符合规范标准要求,是一种很有效的作业方法。
The traditional RTK earthwork survey work is easily restricted by complex terrain due to the simple operation and low intelligence of the instruments,resulting in delays and increase in costs.The application of oblique photogrammetry in earthwork calculation provides a good solution to the problem.This paper describes in detail the process of constructing a 3 D model with the oblique photogrammetry combined with PhotoScan software:using ArcGIS and Southern Cass as the data processing platform,the accuracy analysis on the results of the two earthwork calculations is carried out;relevant requirements are put forward for the deployment principle of UAV image control points;finally,the classification of dense point clouds and the extraction of elevation points in non-ground areas are optimized.The results show that the application of the oblique photogrammetry in earthwork calculation not only improves the operational efficiency and saves cost to a great extent,but also the accuracy of earthwork calculation meets the requirements of the specification standard,which is a very effective operational method.
作者
郭琪璇
宋晓芳
杨礼朋
GUO Qixuan;SONG Xiaofang;YANG Lipeng(Henan Geology Mineral College,Zhengzhou 451464,China;No.3 Institute of Geological&Mineral Resources Survey,Bureau of Geological&Resources Survey and Development of Henan,Zhengzhou 450014,China)
出处
《山西煤炭》
2022年第3期116-121,共6页
Shanxi Coal
