摘要
传统二维地质填图生成的地形地质图是地形曲面上对三维地质模型的降维表达,是三维地质模型在地表窗口的三维展现。本文以高分辨率倾斜模型数据(.OSGB格式文件)为源数据,研究三维地质填图的地层界线采集与数据组织方法。研究了以人工干预的方式半自动追踪地层界线的方法,既减少了操作员的工作量,又提高了工作效率,同时还避免了全自动识别精度低、需要攻克的技术难度大等问题。
The topographic geological map generated by the traditional two-dimensional geological mapping is the dimension reduction expression of the three-dimensional geological model on the topographic surface and the three-dimensional display of the three-dimensional geological model in the surface window.Taking the OSGB format three-dimensional model data built by high-resolution tilt photography as the source data,this paper studies the stratigraphic boundary acquisition and data organization method of three-dimensional geological mapping.The method of semi-automatic tracking stratigraphic boundaries by manual intervention on OSGB is studied,which not only reduces the workload of operators,but also improves the work efficiency.At the same time,it also avoids the problems of low accuracy of full-automatic recognition and great technical difficulty to be overcome.
作者
陈鹏洲
郭文庆
CHEN Pengzhou;GUO Wenqing(Hangzhou Branch of Zhejiang Land Survey and Planning Co.,Ltd.,Hangzhou 310030,China)
出处
《测绘与空间地理信息》
2023年第7期161-163,共3页
Geomatics & Spatial Information Technology
关键词
倾斜摄影
地质界线
半自动追踪
tilt photography
geological boundaries
semi-automatic tracking
