Skip to main content
Article thumbnail
Location of Repository

Fast approximations of the orthogonal dual-tree wavelet bases

By Adeel Abbas and Trac D. Tran

Abstract

Recently, there has been a significant interest in the design of iterated filter banks in which the resulting wavelet bases form an approximate Hilbert transform pair. In this work, we propose three approximations of such dual-tree wavelet bases that satisfy Hilbert transform conditions. Our designs are derived from Selesnick’s and Kingsbury’s orthogonal wavelet filter solutions, and meet other desirable properties such as high coding gain, reduced computational complexity and sufficient regularity. The Quantization is performed in lattice domain using sum-of-power-of-two (SOPOT) coefficients. Several performance comparisons are presented. Furthermore, this paper introduces a proposition that lattice coefficients of filters that are time-reversals of each other are closely related. 1

Year: 2005
OAI identifier: oai:CiteSeerX.psu:10.1.1.134.856
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://www.ece.jhu.edu/~aabbas... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.