基于MATLAB的地图符号识别算法研究  

Research on Map Symbol Recognition Algorithm Based on MATLAB

作　　者：武蓓蓓 徐青[1] 冯世盛 WU Beibei;XU Qing;FENG Shisheng(Institute of Geospatial Information,Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学地理空间信息学院,河南郑州450001

出　　处：《测绘与空间地理信息》2022年第7期249-252,共4页Geomatics & Spatial Information Technology

摘　　要：地图作为人类认识、描绘与分析空间信息最有效的手段,对空间认知有着极为重要的作用。地图利用地图符号表示制图对象的空间分布、数量、质量及其在空间中的相互关系,不仅解决了客观世界与地图平面之间的矛盾,而且反映了空间事物的变化和发展规律。本文基于MATLAB平台,分别利用霍夫变换算法和组合函数算法实现对规则、不规则和复杂地图符号的识别与特征提取,分析比较了2种方法的优缺点,最终解决了复杂地图符号的识别问题。As the most effective means for humans to recognize,describe and analyze spatial information,maps play an extremely important role in spatial cognition.The map uses map symbols to express the spatial distribution,quantity,quality and interrelationship of cartographic objects in space,which not only resolves the contradiction between the objective world and the map plane,but also reflects the law of changes and development of spatial things.Based on the MATLAB platform,this paper uses the Hough transform algorithm and the combined function algorithm to realize the recognition and feature extraction of regular,irregular and complex map symbols.The advantages and disadvantages of the two methods are analyzed and compared,and the problem of the recognition of complex map symbols is finally solved.

关 键 词：地图符号 霍夫变换 组合函数 识别 特征提取 

分 类 号：P283.1[天文地球—地图制图学与地理信息工程]