A new design of 2-D nonseparable hexagonal quadrature-mirror filter banks

Author

Xu, H. ; Lu, W.-S. ; Antoniou, A.

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

fYear

1993

fDate

14-17 Sep 1993

Firstpage

35

Abstract

A new design method for 2-D nonseparable hexagonal quadrature mirror filter banks is proposed. The new method involves minimizing an objective function containing two error terms, one dealing with the perfect reconstruction condition and the other with intra-band aliasing. The method makes full use of the symmetry of hexagonal FIR filters, which leads to a considerable reduction in the amount of computation required by the optimization. This method is compared with one proposed by Simoncelli and Adelson (1990) and is shown to yield superior results

Keywords

digital filters; filtering and prediction theory; two-dimensional digital filters; 2-D nonseparable hexagonal QMF; error terms; hexagonal FIR filters; intra-band aliasing; objective function; optimization; perfect reconstruction condition; quadrature-mirror filter banks; Algorithm design and analysis; Channel bank filters; Design methodology; Filter bank; Finite impulse response filter; Frequency; Mirrors; Sampling methods; Signal processing algorithms; Two dimensional displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1993. Canadian Conference on

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-2416-1

Type

conf

DOI

10.1109/CCECE.1993.332242

Filename

332242