计算机应用 ›› 2011, Vol. 31 ›› Issue (11): 3031-3034.DOI: 10.3724/SP.J.1087.2011.03031

• 图形图像技术 • 上一篇    下一篇

反求工程中基于属性邻接图的凸块特征提取

宋良浩,刘光帅,李柏林,张莉   

  1. 西南交通大学 机械工程学院,成都 610031
  • 收稿日期:2011-05-11 修回日期:2011-06-29 发布日期:2011-11-16 出版日期:2011-11-01
  • 通讯作者: 宋良浩
  • 作者简介:宋良浩(1986-),男,湖北仙桃人,硕士研究生,主要研究方向:数字化设计、计算机辅助几何设计;
    刘光帅(1978-),男(侗族),贵州天柱人,讲师,博士研究生,主要研究方向:数字化设计、计算机辅助几何设计;
    李柏林(1962-),男,广西桂林人,教授,博士生导师,主要研究方向:智能化设计、计算机图形图像处理;
    张莉(1988-),女,湖北荆门人,硕士研究生,主要研究方向:数字化设计、计算机辅助几何设计。
  • 基金资助:
    四川省科技支撑项目;中央高校基本科研业务费专项

Bump feature extraction based on attributed adjacency graph in reverse engineering

SONG Liang-hao,LIU Guang-shuai,LI Bai-lin,ZHANG Li   

  1. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu Sichuan 610031, China
  • Received:2011-05-11 Revised:2011-06-29 Online:2011-11-16 Published:2011-11-01
  • Contact: SONG Liang-hao

摘要: 反求工程(RE)中组合特征提取有利于提高建模精度及捕捉原始设计意图,但目前对于组合特征的研究还不够深入。为了从点云数据中直接提取凸块类组合特征,提出了一种反求工程中基于属性邻接图的凸块特征提取方法。首先使用基于属性邻接图的方法识别出凸块特征;接着提取凸块特征基本参数并判断识别出凸块特征的类型。实例结果表明,该方法能直接、高效地从点云数据中提取出不同类型凸块特征。

关键词: 凸块特征, 组合特征, 特征提取, 点云数据, 属性邻接图, 反求工程

Abstract: Combined feature extraction in Reverse Engineering (RE) is beneficial to improving the whole quality of reconstruction model and reflecting the original design intention, but currently reletated research is not intensive. In order to extract bump feature which belongs to a simple combined feature from point cloud data in reverse engineering, a method based on Attribute Adjacency Graph (AAG) for extraction bump feature was proposed. Firstly, the algorithm based on AAG decomposition was used to recognize stock feature. Then, the parameters of stock feature were extracted and the type of stock feature was distinguished. The experimental results show that the method is effective and direct to extract different types of stock features.

Key words: bump feature, combined feature, feature extraction, point cloud data, Attribute Adjacency Graph (AAG), Reverse Engineering (RE)