The Method for Separating Texts from Mechanical Engineering Drawings  

作　　者：吴林瑞[1] 陈炯柏[1] 袁曾凤[1] 

机构地区：[1]北京理工大学机电控制工程系

出　　处：《Journal of Beijing Institute of Technology》1999年第1期102-108,共7页北京理工大学学报（英文版）

摘　　要：Aim To separate texts from graphics on mechanical engineering drawings. Methods By improved labeling run, the size of circumscribed rectangle and pixel density about the connected graphs on a drawing were gained, according to these value, texts not sticking to graphics could be separated from a drawing. The concept of appendant block was introduced, using the appendant block, texts sticking to graphics could be determined and cut. Results Texts and symbols on mechanical engineering drawings can be separated well. Conclusion This method is simple and fast, it does not destroy the shape of texts and symbols, it can be used for separating texts and symbols from all linear graphics.目的研究机械工程图分割图形和文字的方法．方法通过改进的行程标号方法确定各连通区域的外接矩形、像素密度等，根据外接矩形大小及像素密度将不与图形相粘连的文字、字符从线形图形中区分并分离出来．利用附属图块来判断并切割与图形相粘连的字符．结果可以较好地将机械工程图中文字、字符分离出来．结论该方法算法简单，速度快，不破坏文字、字符的原形，适用于线型图形中的图文分离．

关 键 词：RUN labeled block independent block appendant block 

分 类 号：TB23[一般工业技术—工程设计测绘]