An approximation of Daubechies wavelet matrices by perfect reconstruction filter banks with rational coefficients

Authors:
L. Ephremidze;A. Gamkrelidze;E. Lagvilava
Affiliations:
A. Razmadze Mathematical Institute, Tbilisi, Georgia 0143;I. Javakhishvili State University, Tbilisi, Georgia 0143;A. Razmadze Mathematical Institute, Tbilisi, Georgia 0143
Venue:
Advances in Computational Mathematics
Year:
2013

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Abstract

It is described how the coefficients of Daubechies wavelet matrices can be approximated by rational numbers in such a way that the perfect reconstruction property of the filter bank be preserved exactly.