期刊文献+

一种基于特征拟合的网格分割方法及其在反求工程中应用

Feature-fitting based mesh segmentation algorithm and its usage in reverse engineering
下载PDF
导出
摘要 随着3D数字化技术的逐步普及,越来越多的形体通过光学扫描设备输入计算机,形成网格模型,然后借助网格分割技术从中提取有用的结构、特征信息。当前基于曲率的分割方法占据主导地位,但常不能取得满意的分割结果。介绍了一种基于分层特征拟合的网格分割方法,适用于工业产品的反求设计,且可以处理扫描数据残缺的情形。详述了算法思路、流程,并给出了反求工程应用实例。 Freeform shape is usually designed by reverse engineering method thorough a 3D scan-ner,so points cloud segmentation becomes a key problem. Curvature based segmentation algorithms are most used today,and can't easily deal with holes and noises in the measurement data.A feature-fitting based segmentation method is introduced,and ideals behind the algorithm are explained,and the computing steps are visualized thorough a simple example.Traditional segmentation algorithm and the new one are compared in the reverse engineering process of a complex automobile part. The result shows that the feature-fitting based segmentation method is more robust and efficient.
出处 《机械设计与制造》 北大核心 2009年第3期71-73,共3页 Machinery Design & Manufacture
基金 广东省自然科学基金(07117422) 广州市科技计划资助项目(2006Z3-D9031)
关键词 网格分割 反求工程 形状抽象 Mesh segmentation Reverse engineering Shape abstraction
  • 相关文献

参考文献4

  • 1钱锦锋.逆向工程中的点云处理.浙江大学学报,2005,.
  • 2吕震.反求工程CAD建模中的特征技术研究.浙江大学学报,2003,.
  • 3Garland,M.,Willmot,A. and Heckbert,P.S. Hierarchical face clustering on polygonal surfaces [C]. Proceedings of ACM Symposium on Interactive 3D Graphics, 2001:49-58.
  • 4Attene M.,Falcidieno B. and Spagnuolo M. Hierarchical mesh segmentation based on fitting primitives[J]. The Visual Computer. 2006,22(3): 181-193.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部