测绘学报 ›› 2017, Vol. 46 ›› Issue (11): 1899-1909.doi: 10.11947/j.AGCS.2017.20170001

• 地图学与地理信息 • 上一篇    下一篇

手绘地图开域空间方向关系检索法

安晓亚1,2, 刘平芝1,2, 金澄1,2, 徐道柱1,2, 王峰3   

  1. 1. 西安测绘研究所, 陕西 西安 710054;
    2. 地理信息工程国家重点实验室, 陕西 西安 710054;
    3. 西安测绘信息技术总站, 陕西 西安 710054
  • 收稿日期:2017-01-03 修回日期:2017-08-18 出版日期:2017-11-20 发布日期:2017-12-05
  • 作者简介:安晓亚(1982-),男,博士,助理研究员,研究方向为空间数据相似性及应用。E-mail:xya2001@tom.com
  • 基金资助:

    国家自然科学基金(41201469)

A Hand-drawn Map Retrieval Method Based on Open Area Spatial Direction Relation

AN Xiaoya1,2, LIU Pingzhi1,2, JIN Cheng1,2, XU Daozhu1,2, WANG Feng3   

  1. 1. Xi'an Research Institute of Surveying and Mapping, Xi'an 710054, China;
    2. State key Laboratory of Geo-information Engineering, Xi'an 710054, China;
    3. Xi'an Technical Division of Surveying and Mapping, Xi'an 710054, China
  • Received:2017-01-03 Revised:2017-08-18 Online:2017-11-20 Published:2017-12-05
  • Supported by:

    The National Natural Science Foundation of China (No. 41201469)

摘要:

为满足智能化检索地理信息的需求,提出一种基于开域空间方向关系的手绘地图检索方法。首先设计了一种适用于手绘地图检索的开域空间方向关系描述模型。该模型通过开域既能自适应精确描述,又可通过松弛化策略模糊描述手绘对象间方向关系。提出基于开域空间方向关系的手绘地图检索流程,建立了R树空间索引和方向关系相似度计算模型,给出了输出结果的评价方法。采用实际数据的试验结果表明,该方法可在较大范围地图场景中有效检索到排名靠前的结果。

关键词: 地理信息检索, 手绘地图, 开域空间方向关系, 相似度计算

Abstract:

To meet the needs of retrieving the geographic information intelligently,a hand-drawn map retrieval method based on open area spatial direction relation is proposed.Firstly,it is designed that a new type of open area spatial direction relation description model and calculation method based on the opening area between the hand-objects,which can be used to hand-drawn map retrieval,both can be adapted to accurately describe by open area,but also through the relaxation strategy to describe the fuzzy relationship.A hand-drawn map retrieval process based on open area spatial direction relation is proposed.The evaluation model,similarity calculation of spatial direction relation and R-tree spatial index are given.The experiment results show that the method can retrieve the top-ranking results effectively in a large scope map scene.

Key words: geographic information retrieval, hand-drawn map, open area spatial direction relation, similarity calculation

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