In this paper we construct a family of ternary interpolatory Hermite subdivision schemes of order 1 with small support and HC2-smoothness. Indeed, leaving the binary domain, it is possible to derive interpolatory Hermite subdivision schemes with higher regularity than the existing binary examples. The family of schemes we construct is a two-parameter family whose HC2-smoothness is guaranteed whenever the parameters are chosen from a certain polygonal region. The construction of this new family is inspired by the geometric insight into the ternary interpolatory scalar three-point subdivision scheme by Hassan and Dodgson. The smoothness of our new family of Hermite schemes is proven by means of joint spectral radius techniques.
机构:
INSA Rennes, IRMAR, 20 Av Buttes de Coesmes,CS 14315, F-35043 Rennes, FranceINSA Rennes, IRMAR, 20 Av Buttes de Coesmes,CS 14315, F-35043 Rennes, France
Merrien, Jean-Louis
Sauer, Tomas
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Univ Passau, Lehrstuhl Math Schwerpunkt Digitate Bildverarbeit, Innstr 43, D-94032 Passau, GermanyINSA Rennes, IRMAR, 20 Av Buttes de Coesmes,CS 14315, F-35043 Rennes, France