| 从几何实体重建设计特征模型 |
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| 引用本文： | 刘云华,陈立平,钟毅芳.从几何实体重建设计特征模型[J].计算机辅助设计与图形学学报,2003,15(7):836-841. |
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| 作者姓名： | 刘云华 陈立平 钟毅芳 |
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| 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 |
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| 基金项目： | 国家“八六三”高技术研究发展计划 ( 9842 0 0 3 ) |
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| 摘 要： | 根据几何元素间的典型关系，提出多种将面邻接属性图分解为更小的子图的方法，如利用内环、夹在几个邻接面之间的环等来分解面邻接属性图．为提高识别的速度和稳定性，依次采用如下步骤：提取可识别的简单特征；根据序列的规则来区别未识别的子图并识别出复杂特征；最后用ACIS5．0中REM模块相应的函数检验所识别的特征．文中算法的有效性用NIST零件库中的标准测试零件予以验证．
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| 关 键 词： | 图像识别 特征提取 数据转换 CAD 计算机辅助设计 |
| 修稿时间： | 2002年6月7日 |
Reconstruction of Design Feature Model From Geometric Entities |
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| Liu Yunhua,Chen Liping,Zhong Yifang.Reconstruction of Design Feature Model From Geometric Entities[J].Journal of Computer-Aided Design & Computer Graphics,2003,15(7):836-841. |
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| Authors: | Liu Yunhua Chen Liping Zhong Yifang |
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| Abstract: | According to the specific relationship of geometrical elements, several methods are presented to decompose face adjacency attribute graph (FAAG) into smaller sub graphs For instance, inner loops, loop across several adjacent faces, etc are used to decompose FAAG To enhance the speed and stability of further processing subsequent steps involve: sorting sub graphs; extracting recognizable simple features; reorganizing the remaining sub graphs according to a set of rules and extracting complex features; validating the final feature model by REM (Remove Faces Component) function of ACIS 5 0 Benchmarks from NIST parts library are used to verify the effectiveness of our approach |
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| Keywords: | feature recognition design feature decomposition of graph face adjacent attribute graph |
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