摘要
本文提出了3种空间线群目标方向相似度的计算模型。依据风向玫瑰图的原理,将空间线群目标的方向特征进行定量统计生成对应的方向玫瑰图,在此基础上,生成对应的标准差椭圆和统计直方图,从而分别建立基于线目标方向玫瑰图、基于标准差椭圆和基于统计直方图的方向相似度计算模型,并进行了实验验证和分析。
Three direction similarity calculation models of spatial line groups were proposed in this paper. Spatial line objects＇ directional characteristics were counted and the corresponding direction rosette histogram was built according to the principle of wind rose. Then the standard deviational ellipse and statistical histogram were built on this basis. The direction similarity calculation models based on rosette histogram, standard deviational ellipse, and statistical histogram were built respectively, which were verified by the experiment finally.
出处
《测绘科学》
CSCD
北大核心
2013年第1期156-159,共4页
Science of Surveying and Mapping
基金
国家自然科学基金(41201476)
数字制图与国土应用工程国家测绘局重点实验室开发研究基金(GCWD201108)
兰州交通大学青年科学基金(2012001)
关键词
空间线群目标
方向相似度
风向玫瑰图
标准差椭圆
统计直方图
spatial line groups
direction similarity
wind rose
standard deviationai ellipse
statistical histogram
