摘要
三维激光扫描技术作为一种新的测量手段具有高效率、高精度的特点。其获得的海量的测量数据里面存在大量的有用信息,如何从这些信息里面提取出所关心的数据是目前研究的一个热点。本文根据开采沉陷区地表裂缝三维激光扫描数据的特点,将小波分析用于地表裂缝位置的判别。与现场实测数据的比较表明,合适的小波基能够有效地识别出地表裂缝的位置,为接下来的治理工作提供技术支持。
As a new surveying method, the three-dimensional scan technology has high efficiency and high precision. There is plentiful useful information in the vast data obtained by this method. How to get the necessary information from the data is a research hotspot. Based on the characteristic of the 3D laser scanning data gotten from mining subsidence area, this paper distinguished the surface creak position using wavelet transform. Comparing with surveying data, it showed that appropriate wavelet can distinguish the position of surface crack, which will offer technology support for further work.
出处
《测绘科学》
CSCD
北大核心
2010年第1期165-166,171,共3页
Science of Surveying and Mapping
基金
国家科技支撑计划项目"城市废弃工矿区土地再利用技术研究"(2006BAJ14B07)
关键词
三维激光扫描
小波变换
开采沉陷
地表裂缝
3D laser scanning
wavelet transform
mining subsidence
surface crack
