多尺度面实体的匹配方法研究

从多尺度面实体匹配的需要出发,分析地图综合所引起的一对多、多对多匹配关系,以及不同地图综合算子给同名实体所造成的差异,将一对一匹配关系的几何相似性度量模型和非一对一匹配关系的基于重叠度的面实体匹配方法相结合,采用指标阈值自动确定方法,建立一种新的适用多尺度变化的面实体匹配方法。最后以多个比例尺的居民地为实验对象,验证本方法的可行性和有效性。

Research on the method of multi-scale areal feature matching

The existing methods of areal feature matching mainly focus on the similar scale.According to the need of multi-scale areal feature matching, the reasons of causing 1∶M and M∶N matching relationships in map generalization and the differences between same entities caused by different map generalization operators are analyzed in this paper.Combining geometrical similarity model for 1∶1 matching relationship of areal features with the matching method based on overlap which is suitable for not 1∶1 matching relationship, the thresholds of indices can be determined automatically.A new adaptive method is proposed for multi-scale areal features matching.At last, the multi-scale residential data are taken as the experimental object to verify the feasibility and effectiveness of this method.