| 空间线群目标方向相似度计算模型 |
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| 引用本文： | 刘涛,杨树文,李轶鲲,段焕娥.空间线群目标方向相似度计算模型[J].测绘科学,2013,38(1):156-159. |
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| 作者姓名： | 刘涛 杨树文 李轶鲲 段焕娥 |
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| 作者单位： | 兰州交通大学测绘与地理信息学院,兰州,730070 |
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| 基金项目： | 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) |
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| 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。
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| 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 |
Direction similarity calculation model of spatial line groups |
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| LIU Tao,YANG Shu-wen,LI Yi-kun,DUAN Huan-e.Direction similarity calculation model of spatial line groups[J].Science of Surveying and Mapping,2013,38(1):156-159. |
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| Authors: | LIU Tao YANG Shu-wen LI Yi-kun DUAN Huan-e |
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| Institution: | (Faculty of Geomatics and Geographic Information System,Lanzhou Jiaotong University,Lanzhou 730070,China) |
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| Abstract: | 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. |
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| Keywords: | spatial line groups direction similarity wind rose standard deviational ellipse statistical histogram |
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