摘要
讨论并定义了若干关于形态的基本概念,给出了加壳、蜕皮、粘连变换的定义及其实现途径,论证了加壳、蜕皮变换及粘连变换的若干形态特性。联系凸壳概念,论述了运用形态变换实现图形凸壳的原理,并给出了它的通用算法。结合实际算例,阐述了算法的具体步骤和分析结果,并讨论了算法实施中的几个具体理论问题。
In this paper, some basic conceptions about morphology were discussed and defined. Definitions and implementing ways of adding-hull-transformation, removing-skintransformation and conglutination-transformation were presented; morphological features of adding-hull and removing-skin transformation, i. e. shape-alike, convex and concave fea- tures, and measurement features of bulge were argued; and morphological features of conglutination-transformation were demonstrated. Based on these, combining with the concept of convex-hull, we dissertated the principles to achieve the convex-hull of figure with morphological-transformation, and came up with the universal algorithm for it with a sample. Lastly we expatiated the steps and the algorithms in detail, discussed some theoretical issues in the implementation.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2005年第11期1003-1007,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(40471107
40571124)
关键词
形态变换
凸壳
加壳变换
蜕皮变换
粘连变换
曲径宽度
地图代数
morphological-transformation
convex hull
addiing-hull-transformation
removing-skin-transformation
conglutination-transformation
width of a concave
map algebras
作者简介
胡鹏，教授，博士生导师。现主要从事GIS理论和方法、地图代数、新型3S集成软件工具、地理信息工程等研究。E-mail：phu@wtusm．edu．cn
