等高线分类中的改进算法研究

A Improved Algorithm in the Categorizing of Contour

该文的研究对象为1:5万地形图,讨论了对现有等高线识别算法的一些改进算法,是为提高等高线断线的连接率而进行的一种预处理算法,提高了区分计曲线和首曲线的正确率,为等高线的正确连接提供依据,可以避免计曲线和首曲线之间的误连。

The paper mainly aims at the terrain map of1:50000rates.Some improved algorithms are discussed in the paper.They are pre-processing algorithms for raising the connection rate of contour.They can correctly distinguish wide contour from thin contour according to the width information of contour.The contour can be correctly connected by us-ing the information,avoiding wrong connection between wide contour and thin contour.