Surface deformation over flexible joints using spline blending techniques

Abstract

Flexible and reliable profile estimation using exponential splines AIP Conf.Abstract. Skinning over a skeleton joint is the process of skin deformation based on joint transformation. Popular geometric skinning techniques include implicit linear blending and dual quaternions. Generalized expo-rational B-splines (GERBS) is a blending type spline construction where local functions at each knot are blended by C k -smooth basis functions.A smooth skinning surface can be constructed over a transformable skeleton joint by combining various types of local surface constructions and applying local Hermite interpolation . Compared to traditional spline methods, increased flexibility and local control with respect to surface deformation can be achieved using the GERBS blending construction.We present a method using a blending-type spline surface for skinning over a flexible joint, where local geometry is individually adapted to achieve natural skin deformation based on skeleton transformations..

Evaluation of Smooth Spline Blending Surfaces Using GPU

“…In Section 5.3 and Section 5.4, the application efforts made to skinning and animation tracks are covered. The sections cite two application papers, [HBD14] and [BD14], where the former was submitted as a part of Haavardsholm's m.sc. thesis.…”

“…For instance, in Paper II, we utilize Taylor expanding polynomials, such that we can compare the overlying partitioning methods as the support in the local geometry expands. Another example is [HBD14], where we utilize Hermite surfaces to interpolate a required set of local coefficients.…”

“…The principal experiment was an extracurricular sub-task to Haavardsholm's m.sc.-thesis [HBD14]. The author of this thesis proposed the fundamental idea, while the experiments and the published paper were in the majority written by Haavardsholm under supervision.…”