可调度的小波网格变形

三维网格模型的Morphing是计算机动画研究的重要内容,利用频谱工具控制变形成份出现的次序是对变形路径进行控制的有效方法之一。但在三维网格模型上无法直接进行频谱分析,使得该技术一直无法在网格模型的Morphing中发挥作用。论文在数字几何处理框架的基础上,提出了利用小波分析进行可控网格变形的新方法。针对变形研究和数字几何处理中的关键问题——特征点对齐和采样,分别提出了基于Harmonic映射的参数化网格warping的特征对齐方法以及新型的自适应采样方法。实验表明,该方法稳定可靠,计算量适中,变形结果更为丰富。

Scheduled Wavelet Mesh Morphing

3D mesh morphing is an important research field in computer animation.It is a common method to control the sequence of the different signal frequency by spectrum analysis tool.However,it is difficult to make use of the tool on 3D mesh model directly.In this paper,a scheduled wavelet mesh morphing method is presented based on the unified framework for digital geometry processing(DGP).Aimming at the two key problems in morphing and DGP,feature alignment and sampling,a parametrization warping method based on harmonic map and an adaptive sampling method are presented respectively.Experiments show that this method is robust and efficient,and its morphing routine is diverser.