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利用单元格和特征点实现图纸信息的自动提取
引用本文:龚雄,朱林,赵建军,陈立平.利用单元格和特征点实现图纸信息的自动提取[J].计算机辅助设计与图形学学报,2005,17(8):1883-1888.
作者姓名:龚雄  朱林  赵建军  陈立平
作者单位:华中科技大学国家CAD支撑软件工程技术研究中心,武汉,430074;华中科技大学国家CAD支撑软件工程技术研究中心,武汉,430074;华中科技大学国家CAD支撑软件工程技术研究中心,武汉,430074;华中科技大学国家CAD支撑软件工程技术研究中心,武汉,430074
基金项目:国家“八六三”高技术研究发展计划(2003AA411044)
摘    要:工程图中的标题栏和明细栏是产品数据集中管理的重要数据来源.出于重用CAD数据的考虑,提出了一种有效的工程图零部件信息提取方法.通过分析工程图中标题栏和明细栏的形式,从宏观布局和微观结构出发归纳了表格的位形特征;提出了基于单元格和特征点的图纸数据自动提取策略,详细介绍了算法思想和实施步骤;开发了实用程序并在工程项目中得到应用.

关 键 词:计算机应用  单元格  特征点  工程图  零部件信息
收稿时间:2004-11-16
修稿时间:2004-11-16

Method of Automatic Extraction of Drawing Information Based on Cell-Grid and Feature-Point
GONG Xiong,Zhu Lin,ZHAO Jianjun,Chen Liping.Method of Automatic Extraction of Drawing Information Based on Cell-Grid and Feature-Point[J].Journal of Computer-Aided Design & Computer Graphics,2005,17(8):1883-1888.
Authors:GONG Xiong  Zhu Lin  ZHAO Jianjun  Chen Liping
Abstract:The title and bill of material in engineering drawings are important data source for product data integrated management. In order to reuse the CAD data, the paper presents an effective method for extracting part information from existing engineering drawings. Through analyzing the format of title and bill of material, several shape-position characteristics of tables are summed up from the view of macro-layout and microstructure. A new method to automatically extracting drawing information based on cell-grid and feature-point is proposed along with its algorithm principle and implementation steps. A software package based on the method mentioned above is developed and used in practice.
Keywords:computer application  cell-grid  feature-point  engineering drawing  part information
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