机械图纸的信息理解

Information Understanding of the Mechanical Drawing

本文首先提出了通过检测象素点的性质,用图搜索方法,抽取图纸上各个连通域,根据每一个连通域的外接矩形的形状、大小、将图纸信息分离为轮廓线与尺寸线,尺寸标注线及符号三大部分。

A graph searching method is firstly proposed to extract each connecting region on the image, and separated the drawing into three elements-contours and dimentions、 dimention sign line and sign according to the shape and dimention of outer connecting rectange for each connecting region. A separated depth priority searching method of contour and dimention line is also presented.