基于曲面变形技术的数据融合方法研究

逆向工程中单一的数据测量方法要么存在测量效率低,要么存在测量精度差等缺陷,其数据测量方法越来越难以满足高效率和高精度的逆向建模要求,因此对多种测量数据进行融合的逆向工程CAD方法已受到研究者的重视。论述了基于能量优化法的曲面变形原理,利用ThinkDesign软件的曲面变形功能特点,结合逆向工程中的接触式和非接触式测量设备的测量数据,提出了基于曲面变形技术的测量数据融合方法,并给出了实例。最后通过Geomagic Qualify软件验证表明此数据融合方法是有效的。

Research on Data Fusion Based on Surface Deformation Technology

A single data measurement method in reverse engineering is either low in efficiency or poor in accuracy and so on,which is becoming more difficult to satisfy the need of high efficiency and high accuracy in reverse modeling,therefore the CAD modeling via reverse engineering meshing a variety of measurement data have been got researchers’attention.Then the principle of surface deformation based on energy minimization method is discoursed.By taking advantage of the function of surface deformation in ThinkDesign,combined with the contact and non-contact measurement data measured by measurement device in reverse engineering,a data fusion method based on surface deformation technology is proposed,and a case study is given.Finally,this data fusion method is validated by Geomagic Qualify.