We give a simple formula for the duals of the filters associated with bivariate box spline functions. We show how to construct bivariate non-separable compactly supported biorthogonal wavelets associated with box spline functions which have arbitrarily high regularities.
Some Remarks about Compactly Supported Spline Wavelets
โ Scribed by E.P. Serrano
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 190 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1063-5203
No coin nor oath required. For personal study only.
โฆ Synopsis
In this paper we propose an extended family of almost orthogonal spline wavelets with compact support. These functions provide snug bases for L 2 (R), preserving semiorthogonal properties. As it is well known, orthogonality is a desirable quality while finite support has attractive features for numerical applications. This work represents an effort to combine these conditions in the spline case and to enhance previous results of Chui and Unser et al. We start by reviewing the concept of semiorthogonal wavelets and we discuss their performance. Next, we give a brief description of the general technique for computing compactly supported spline wavelets. Finally we expose these functions. We also develop several formulas in accord with our purposes.
๐ SIMILAR VOLUMES
We first show that by combining monodimensional filter banks one can obtain nonseparable filter banks. We then give necessary conditions for these filter banks to generate orthonormal and regular wavelets. Finally, we establish that some of these filter banks lead to arbitrarily smooth, nonseparable