基于数学形态学的地形图自动矢量化研究

A Study of Automatic Vector System about Topographic Map Based on Mathematical Morphology

概要介绍了数字流域系统中地形图自动矢量化子系统的结构框架及基于数学形态的细化算法模型、滤波算法模型、图文分割的算法模型;分析了渐次扩大多结构元素串联式滤波算法,移动矩形的节点数据压缩算法;在地形图自动处理实践中,证明了多结构元素的选择与组合及算法的高效可行性及系统设计的合理性。

The structure of automatic vector system about topographic map of digital valley system is briefly presented.The thinning model,filter model and separator arithmetic model about map & characters based on mathematical morphology are also discussed.A filter algorithm based on gradually scaleup multiple structuring elements and a data compress algorithm based on movable rectangle are given.The results show the high efficiency and feasibility of the selection of multiple structures elements and rationality of the system design.