基于LiDAR点云的等高线批量自动提取  

Automatic Batch Extraction Processing of Contour with LiDAR Data

作　　者：杨颖[1] 魏国忠[1] 鲁一慧[1] 

机构地区：[1]山东省国土测绘院,山东济南250013

出　　处：《测绘与空间地理信息》2015年第11期167-169,共3页Geomatics & Spatial Information Technology

摘　　要：等高线是地图上最广泛的地貌表示方法之一,目前,生产实际中,大范围区域的等高线通常使用传统的航测内业方法获得,即经过空三加密后在立体采集设备上采集,不仅费时费力,还要受到天气等多种因素的影响。利用Li DAR技术进行等高线提取,能大幅度提高航测成图作业的生产效率,减少生产环节,缩短生产周期,本文在EPS软件的基础上,对基于Li DAR数据的等高线提取方法进行了改进,并针对大数据量批量处理研究,实验结果证明,使用本文的方法进行大范围等高线自动提取,在保证精度质量的前提下大幅度提高了等高线制作的效率。Contour map is one of the most extensive terrain representations. In the current production,the contour line of a wide range of areas is usually obtained using the traditional aero photogrammetry method,which is based on aerial triangulation and stereo mapping on the stereoscopic collecting equipment. That not only case waste of time and energy,but also is easily influenced by the weather and many other factors. Getting contour line with Li DAR technology can greatly enhance productivity,reduce links in the production chain and shorten production cycle. This paper has made great efforts to improve contour extraction method using LIDAR data based on EPS,and further on made research on batch extraction processing of contour. The experimental results show that,the contour line extracted with the proposed batch processing method could accuracy meet the precision and quality requirements,while the production efficiency was also greatly improved.

关 键 词：LIDAR点云 等高线提取 大数据量 批量处理 

分 类 号：P237[天文地球—摄影测量与遥感]