基于平面离散曲线序列的三维几何结构识别

3D Geometrical Structure Recognition from Planar Discrete Curve Series

提出了一种由分层离散曲线序列识别物体三维特征的方法，定义了一些能够表达平面曲线基本特性的特征，设计了用于识别物体三维结构的特征函数，基于这些特征函数，物体被分解为柱体、锥体和曲线体的组合，给出了一些具体应用实例。

s: A method for feature recognition of 3D geometrical part from its slicing discrete curve series is studied. Some features of planar curve, which can represent its basic characteristics, are discussed. Furthermore, a number of eigenfunction used to recognize the 3D structure of geometrical part are constructed. Based on the eigenfunction, the geometrical part is decomposed into a combination of cylinder, taper as well as surface part. Some examples are given also.