模具技术Issue(4)：5-9,5.
基于小波变换和NURBS的自由曲面重构的去噪处理
The de-noise processing in free-form surface reconstruction based on wavelet transform and NURBS
摘要
Abstract
Wavelet analysis theory is a new theory in signal processing and performs well in local analysis in both frequency and time domains. Due to the advantage in time-frequency analysis, wavelet analysis has played a particularly important role in signal de-noising. The application of wavelet analysis in surface de-noising was introduced in this paper. Wavelet analysis of original surface was carried out, on which a large amount of noises were added randomly, and lower frequency components were then extracted. Thus the surface was reconstructed by NURBS in Unigraphics, and the reconstruction accuracy was finally ana-lyzed.关键词
逆向工程/曲面重构/小波分解/NURBSKey words
reverse engineering/surface reconstruction/wavelet analysis/NURBS分类
信息技术与安全科学引用本文复制引用
杨征宇,夏庆观,缪德建..基于小波变换和NURBS的自由曲面重构的去噪处理[J].模具技术,2009,(4):5-9,5.基金项目
江苏省教育厅自然科学基金项目(07KJD460082) （07KJD460082）
(KXJ07116). （KXJ07116）
