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| 空间线群目标相似度计算模型研究 | |
| 引用本文： | 刘涛,杜清运,毛海辰.空间线群目标相似度计算模型研究[J].武汉大学学报(信息科学版),2012,37(8):992-995. |
| 作者姓名： | 刘涛 杜清运 毛海辰 |
| 作者单位： | 1. 兰州交通大学数理与软件工程学院,兰州市安宁西路88号,兰州730070 2. 武汉大学资源与环境科学学院,武汉市珞喻路129号,武汉430079 3. 河南省灵宝市水利局,灵宝市黄河路10号,河南472500 |
| 基金项目： | 数字制图与国土应用工程国家测绘地理信息局重点实验室开放研究基金资助项目 |
| 摘 要： | 以空间线群目标的空间统计特征为基础,对线群目标的空间关系和几何特征进行了描述。利用拓扑关系概念邻域图定义线群之间的拓扑关系相似度,利用方向均值定义线群之间的方向关系相似度以及利用"环形方差"定义线群目标之间的距离相似度。结合线群的长度和平均长度、线群密度及线群曲折度,建立了线群目标相似度计算模型,对线群目标相似度进行了整体度量。实验结果表明,相似度计算结果与地物特征比较一致,符合人们的直观认知。 |
| 关 键 词： | 空间相似性 线群 相似度 空间关系 空间统计 |
Spatial Similarity Assessment Model and Its Application in Line Groups |
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| LIU Tao,DU Qingyun,MAO Haichen.Spatial Similarity Assessment Model and Its Application in Line Groups[J].Geomatics and Information Science of Wuhan University,2012,37(8):992-995. | |
| Authors: | LIU Tao DU Qingyun MAO Haichen |
| Institution: | 1 School of Math,Physics & Software Engineering,Lanzhou Jiaotong University, 88 West Anning Road,Lanzhou 730070,China)(2 School of Resource and Environmental Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(3 Henan Lingbao Water Resource Bureau,10 Huanghe Road,Lingbao 472500,China) |
| Abstract: | The spatial relationships and geometry features of line group based on spatial statistical character are described.The conceptual neighborhood network of topological relationships between lines is used to define topology similarity between line groups.The directional mean is applied to define direction similarity between line groups,their circular variance is utilized to define distance similarity between line groups.Combined with the length,average length,density and tortuosity of line group,a computation model for similarity assessment between line groups is established.Experiment results show that the similarity assessment is generally consistent with surface features and intuitive cognition of human. |
| Keywords: | spatial similarity line group similarity spatial relationship spatial statistical |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |