工程图标注字符的提取与识别  

SEGMENTATION AND RECOGNITION OF DIMENSION TEXTS IN ENGINEERING DRAWINGS

作　　者：高静波[1] 唐龙[1] 刘文印 唐泽圣[1] 

机构地区：[1]清华大学计算机科学与技术系

出　　处：《计算机学报》1997年第7期623-629,共7页Chinese Journal of Computers

摘　　要：本文介绍了一种基于连通域检测的工程图标注字符的提取与识别方法．首先建立一种基于连通域和子连通域的工程图的层次表示，然后利用大小判据从连通域中找出字符候选，再利用共线判据提取出标注字符串，最后在预先总结出来的字符串模板的指导下，对提取出的字符串进行分析和识别．A method based on connected area detection is developed to segment and recognize dimension texts in engineering drawings. The paper first builds a hierarchical representation of drawing image based on connected area and sub connected area. Then it uses size criteria to find out character candidates from all connected areas and uses collinear criteria to group separate character candidates into text strings. Finally,it analyzes text strings according to text patterns summarized from dimension texts and gives out the recognition result.

关 键 词：工程图 字符识别 连通域 图形识别 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]