摘要
对当前反求工程关键技术之一的特征提取技术进展作了综述.特征提取分为边界特征提取和过渡特征提取,前者分为基于点云的提取和基于三角网格的提取;后者分为等半径过渡特征提取和变半径过渡特征提取.分析和比较不同提取技术的优缺点,最后再介绍一种用于提取变半径过渡特征的多阈值精度比较法.
In this paper, an overview on reverse-engineering-enabled feature extraction techniques is preliminarily conducted. Generally, the feature extraction can be categorized into the boundary and blend- ing feature extractions. In particular, the former includes the point-cloud and triangular-mesh feature extraction; whereas the latter contains the constant and variable radius feature extraction. By analyzing and comparing the strengths and weaknesses of various feature extraction techniques, a precision comparison method for multiple thresholds is eventually postulated on variable radius blending features extraction.
出处
《中国工程机械学报》
2009年第2期239-244,共6页
Chinese Journal of Construction Machinery
基金
福建省重大科技资助项目(2007H2011)
关键词
反求工程
边界特征提取
过渡特征提取
reverse engineering
boundary features extraction
blending features extraction
