We present a non-stationary, non-uniform scheme for two-point Hermite subdivision. The novelty of this approach relies on a geometric interpretation of the subdivision steps-related to generalized Bernstein bases-which permits to overcome the usually unavoidable analytical difficulties. The main advantages consist in extra smoothness conditions, which in turn produce highly regular limit curves, and in an elegant structure of the subdivision-described by three de Casteljau type matrices. As a by-product, the scheme is inherently shape preserving.
Costantini, P., Manni, C. (2010). A Geometric Approach for Hermite Subdivision. NUMERISCHE MATHEMATIK, 115, 333-369 [10.1007/s00211-009-0280-0].
A Geometric Approach for Hermite Subdivision
MANNI, CARLA
2010-01-01
Abstract
We present a non-stationary, non-uniform scheme for two-point Hermite subdivision. The novelty of this approach relies on a geometric interpretation of the subdivision steps-related to generalized Bernstein bases-which permits to overcome the usually unavoidable analytical difficulties. The main advantages consist in extra smoothness conditions, which in turn produce highly regular limit curves, and in an elegant structure of the subdivision-described by three de Casteljau type matrices. As a by-product, the scheme is inherently shape preserving.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
