电子电路图自动输入系统中的模式分离方法

采用了“内外边缘的快速判决法”与“基于两正交向ＬＡＧ的矢量编码方法”去分离电子电路图的字符与符号．除了对原来的字符分离算法进行改进之外，本文着重于介绍符号分离方法，提出了在“非环形符号”各端点加“黑点”的辅助措施去确定它们的边界．实验结果表明，这些分离方法与辅助措施十分有效，它导致了近１００％的分离率。

The Pattern Separating Methods for Automatic Input Systems of Electronic Circuit Diagrams

An effective detecting method to tell the external contours from the internal ones" and "A new method of vector encoding based on the two-orthogonal LAG"are used to separate characters and symbols from the electronic circuit diagrams. Besides improving the original algorithm of character separating, this paper focuses the separating method of symhlos particularly. An aid measure,is presented that adds "black points" on the terminals of each non-circular symbol to define their boundaries.The experiment results show that these separating methods and the aid measure are very effective. It can lead to a high separating rate of near 100%.