自由曲面特征的定义与识别技术的研究  

Study on definition and recognition of freeform feature

作　　者：孙立镌[1] 梁颖[1] 孙大松[1] 

机构地区：[1]哈尔滨理工大学计算机科学与技术学院,哈尔滨150080

出　　处：《计算机工程与应用》2011年第16期204-206,234,共4页Computer Engineering and Applications

基　　金：国家自然科学基金No.60173055~~

摘　　要：结合自主开发的HUST-CAID(哈尔滨理工大学计算机辅助工业造型设计)系统的特点,引入自由曲面特征,给出了自由曲面特征的参数化定义,并在此基础上对自由曲面特征识别进行研究,先是给出自由曲面特征识别的定义,接着提出了基于曲线的特征识别的算法。该方法将基于曲线的特征以二维参数的形式给出定义,使其能在二维平面上研究,通过重构特征的剖面模板库,从而利用目标特征与模板特征匹配实现了特征识别。Combined with the HUST-CAID system（computer aided industry design system developed by Harbin University of Science and Technology）,this paper introduces the freeform feature,and gives the parameterized definition of freeform feature.On the basis of definition,the feature recognition is researched,the definition of freeform feature recognition is given,and then an algorithm for curve-based feature recognition is put forward.The algorithm formalizes a curve-based feature with a two-dimensional parameter,which the feature can be researched on two-dimensional plane.By using reconstructed feature of profile template library,it realizes curve-based feature recognition with template matching.

关 键 词：自由曲面特征 参数化表示 特征识别 基于曲线特征 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]