| ????LIDAR????????????????????????о? |
| |
| 引用本文： | 李芸,杨博,杨志强.????LIDAR????????????????????????о?[J].大地测量与地球动力学,2013,33(3):111-115. |
| |
| 作者姓名： | 李芸 杨博 杨志强 |
| |
| 作者单位： | 1. 长安大学测绘与空间信息研究所,西安,710054
2. 机械工业勘察设计研究院,西安,710043 |
| |
| 摘 要： | ????????????LIDAR??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????С?????????????и????ü????????????????????????????????????С?
|
| 关 键 词： | ??????????? ?????????? ?????? ??????????? ??С?????? |
EXTRACTION OF RIDGE LINES AND VALLEY LINES FROM MOUNTAINOUS LIDAR GROUND POINT CLOUD |
| |
| Li Yun,Yang Bo,and Yang Zhiqiang.EXTRACTION OF RIDGE LINES AND VALLEY LINES FROM MOUNTAINOUS LIDAR GROUND POINT CLOUD[J].Journal of Geodesy and Geodynamics,2013,33(3):111-115. |
| |
| Authors: | Li Yun Yang Bo and Yang Zhiqiang |
| |
| Institution: | 1) 1)Institute of Surveying and Spatial Information,Chang’an University,Xi’an 7100542)China J K Institute of Engineering Investigation and Design,Xi’an 710043 |
| |
| Abstract: | A method of the extraction of ridge lines and valley lines from mountainous LIDAR ground point cloud is presented. We extracted the normal vector and curvature of ground data based on differential geometry theory and local polynomial fitting??acquied the ridge points and valley points by computing extremum coefficient of curvature, generated ridge lines and valley lines based on the principle of minimum spanning tree. The results show that the method is feasible and effective. |
| |
| Keywords: | ground point cloud data ridge lines and valley lines differential geometry local polynomial fitting minimum spanning tree |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 |
