Deriving box-spline subdivision schemes

NA Dodgson, UH Augsdörfer, TJ Cashman… - … on Mathematics of …, 2009 - Springer
IMA International Conference on Mathematics of Surfaces, 2009Springer
We describe and demonstrate an arrow notation for deriving box-spline subdivision
schemes. We compare it with the z-transform, matrix, and mask convolution methods of
deriving the same. We show how the arrow method provides a useful graphical alternative to
the three numerical methods. We demonstrate the properties that can be derived easily
using the arrow method: mask, stencils, continuity in regular regions, safe extrusion
directions. We derive all of the symmetric quadrilateral binary box-spline subdivision …
Abstract
We describe and demonstrate an arrow notation for deriving box-spline subdivision schemes. We compare it with the z-transform, matrix, and mask convolution methods of deriving the same. We show how the arrow method provides a useful graphical alternative to the three numerical methods. We demonstrate the properties that can be derived easily using the arrow method: mask, stencils, continuity in regular regions, safe extrusion directions. We derive all of the symmetric quadrilateral binary box-spline subdivision schemes with up to eight arrows and all of the symmetric triangular binary box-spline subdivision schemes with up to six arrows. We explain how the arrow notation can be extended to handle ternary schemes. We introduce two new binary dual quadrilateral box-spline schemes and one new box-spline scheme. With appropriate extensions to handle extraordinary cases, these could each form the basis for a new subdivision scheme.
Springer
Showing the best result for this search. See all results