摘要
对于迂回型点群目标空间分布轴线提取的问题,充分分析了现有的方法,在此基础上提出了基于距离变换的方法来提取点群的空间分布轴线,通过考虑不同的情况来综合提取轴线,并通过计算点到轴线的距离量化了离散度,选取离散度最小的轴线作为点群的分布轴线;同时将该方法引入到地震带研究中,以地震带识别为例,应用距离变换方法提取地震带,与现有的地震带识别方法进行比较。
On the basis of the analysis of the existing methods for extracting the spatial distribution axis of the target of the roundabout point group,a method based on distance transformation is proposed to extract the spatial distribution axis of the point group,and the axis is comprehensively extracted by considering different situations. By calculating the distance from the point to the axis,the divergence degree is quantified,and the axis with the smallest divergence degree is selected as the distribution axis of the point group. At the same time,this method is introduced into the seismic belt study. Taking seismic belt recognition as an example,the distance transformation method is used to extract the seismic belt and compare it with the existing seismic belt recognition method.
作者
吴凯
梁勇
蔡永宁
Wu Kai;Liang Yong;Cai Yongning(Jinan Geotechnical Investigation and Surveying Institute,Jinan 250013,China)
出处
《城市勘测》
2019年第5期101-106,共6页
Urban Geotechnical Investigation & Surveying
关键词
点群
距离变换
分布轴线
地震带
spatial points
distance transformation
spatial distribution axis
seismic belt