审图系统中的图纸一致性检测算法  

Algorithm for Consistency Checking in Drawing Audit System

作　　者：李吉超[1] 赵卫东[1] 王树梅[1] 

机构地区：[1]同济大学CAD研究中心,上海200092

出　　处：《计算机工程》2007年第24期277-279,共3页Computer Engineering

基　　金：上海市科学技术委员会科研计划基金资助项目"规划审核方法研究和数据库的建立"(052912065)

摘　　要：在审图系统中,对报送的工程图纸扫描件和先前的电子图纸的一致性检测是一个重要环节。该文将由绘图软件(如AutoCAD等)绘制的以矢量形式保存的电子图纸转化为以栅格形式存储的图像文件,再利用该栅格图像文件对扫描件进行预处理,并用小波变换和计算分形维数对扫描图纸和栅格文件进行比对。实验结果表明,该算法能够很好地实现扫描图纸和栅格文件的比对。Consistency checking between the scanned drawing and the electronic drawing is one of the important steps in the flow of electronic declaring. The electronic blueprint is transformed in vector form preservation drawn up by the cartography software （AutoCAD and so on） to the image document saved by the grid form, this grid image document is used to preprocess the scanned blueprint, and finally consistency checking is carried on between the scanned blueprint and the grid document using the wavelet transformation and the computation fractal dimension. The experimental result indicates that the algorithm can realize the consistency checking between scanning blueprint and the grid document well.

关 键 词：去噪 配准 小波变换 分形维数 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]