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- W2590160122 abstract "Abstract Splines and subdivision curves are flexible tools in the design and manipulation of curves in Euclidean space. In this paper we study generalizations of interpolating splines and subdivision schemes to the Riemannian manifold of shell surfaces in which the associated metric measures both bending and membrane distortion. The shells under consideration are assumed to be represented by Loop subdivision surfaces. This enables the animation of shells via the smooth interpolation of a given set of key frame control meshes. Using a variational time discretization of geodesics efficient numerical implementations can be derived. These are based on discrete geodesic interpolation, a discrete geometric logarithm, a discrete exponential map, and discrete parallel transport. With these building blocks at hand discrete Riemannian cardinal splines and three different types of discrete, interpolatory subdivision schemes are defined. Numerical results for two different subdivision shell models underline the potential of this approach in key frame animation." @default.
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- W2590160122 date "2017-03-01" @default.
- W2590160122 modified "2023-09-24" @default.
- W2590160122 title "Smooth interpolation of key frames in a Riemannian shell space" @default.
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- W2590160122 doi "https://doi.org/10.1016/j.cagd.2017.02.008" @default.
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