【摘要】 本文首先分析了工程图纸尺寸标注的特点及其分类，介绍了现有尺寸标注的识别方法，提出并实现了一种基于标注字符的识别算法。更多还原

【Abstract】 Engineering drawings recognition makes it possible to input drawings automatically,lohile the recognition of dimensions is the key of drawing understanding. In this paper, the characteristics and classification of dimension in engineering drawings are discussed at first,the existing recognition methods are presented,and a new recognition algorithm is proposed and implemented.更多还原