Construction of Multiwavelets on an Interval

Axioms

Ahmet Altürk¹ 

[1] Department of Mathematics, Amasya University, Amasya, Turkey; E-Mail:

关键词: wavelets on an interval;    multiwavelets;    discrete wavelet transform;    boundary handling;   

DOI  :  10.3390/axioms2020122

来源: mdpi

【 摘 要 】

Boundary functions for wavelets on a finite interval are often constructed as linear combinations of boundary-crossing scaling functions. An alternative approach is based on linear algebra techniques for truncating the infinite matrix of the Discrete Wavelet Transform to a finite one. In this article we show how an algorithm of Madych for scalar wavelets can be generalized to multiwavelets, given an extra assumption. We then develop a new algorithm that does not require this additional condition. Finally, we apply results from a previous paper to resolve the non-uniqueness of the algorithm by imposing regularity conditions (including approximation orders) on the boundary functions.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.