摘要
对始发洞门环中心位置以及内径的检测是地铁盾构测量中的一项重要工作,常用的拟合方法不能很好地处理包含异常值的数据。因此本文使用一种基于RANSAC的空间圆拟合方法,该方法能够很好地抵御异常值,能够得到更加准确的拟合值。
The detection on center coordinate and radius of shield entrance ring is an important work in the shield measurement.The commonly used fitting method can’t deal with the data include outliers very well.Therefore,this paper uses a new space round fitting method based on RANSAC.This method can resist outliers very well,and get more accurate fitting values.
作者
孟庆年
张洪德
王智
胡玉祥
周志
Meng Qingnian;Zhang Hongde;Wang Zhi;Hu Yuxiang;Zhou Zhi(Qingdao Institute of Geotechnical Investigation and Surveying Research,Qingdao 266032,China;Qingdao Sea-land Information Integration and Application of Key Laboratory,Qingdao 266032,China)
出处
《城市勘测》
2020年第3期156-158,共3页
Urban Geotechnical Investigation & Surveying
