一种利用面元拟合的地面点云数据三维R树索引方法

基金项目: 国家973计划资助项目(2012BAH35B03);江西省教育厅科技计划资助项目(GJJ12189);国家自然科学基金资助项目(41101369)

详细信息

Intelligent Spatial Information Delivery Decision-Making by Using Interval Analysis

¹Key Laboratory of Poyang Lake Wetland and Watershed Research,Ministry of Education, Jiangxi Normal University,99 Ziyang Road,Nanchang 330022,China;²State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing, Wuhan University,129 Luoyu Road,Wuhan 430079,China;³School of Geography and Environment,Jiangxi Normal University,99 Ziyang Road,Nanchang 330022,China

Funds: 国家973计划资助项目(2012BAH35B03);江西省教育厅科技计划资助项目(GJJ12189);国家自然科学基金资助项目(41101369)

摘要: 针对地面激光扫描的真三维点云数据,提出基于面元拟合的三维R树索引方法,在对点云进行递归分割和面元拟合的过程中形成三维R树节点的包围盒,通过对传统R树的改进,使之更好地保留平面特征,以适应点云数据的管理。通过实验实现了地面点云数据的高效管理与查询检索,证明了方法的有效性。
- 地面激光扫描 /
- 点云数据 /
- 面元拟合 /
- 三维R树索引
Abstract: The classical TOPSIS methods have their limitations when they are applied to spatial information.First,they lack methods for an ideal solution for decision-making attributes in spatial information.Second,they do not provide the utility degree for decision-making attributes.To solve these two problems,TOPSIS is extended by introducing interval analysis,and hence the E-TOPSIS-based algorithm for delivery decision-making is proposed.Experiments indicate that the E-TOPSIS-based algorithm is quite competent with intelligent spatial information delivery decision-making.
- interval analysis /
- int

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