摘要
对点云数据分层,然后对层截面数据采用柱面坐标排序。对每层截面离散点运用最小二乘拟合后再用B样条基函数加权,由此推算出截面中心和对称线。在此基础上找出特征点备后续构造曲面模型使用。
In this paper, we delaminated the Point Clouds and sorted the layered section data in cylindrical coordinates system. Then applied the minimum mean-square value to fit to the discrete data of section. And then weighted with B-spline basis function. Thus we could compute the central point and the symmetric line of every section. Finally, on this condition, we could locate the feature point, which can be used to construct a surface model.
出处
《东华大学学报(自然科学版)》
CAS
CSCD
北大核心
2004年第4期18-20,共3页
Journal of Donghua University(Natural Science)
关键词
最小二乘
B样条
对称化
特征点
minimum mean-square value, B-spline, symmetrization, feature point