Minimum mean square error FIR filter banks with arbitrary filter lengths

Author

Hjørungnes, Are ; Coward, Helge ; Ramstad, Tor A.

Author_Institution

Dept. of Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim, Norway

Volume

1

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

619

Abstract

The performance of subband image coders depends on the proper choice of filter banks. It is therefore desirable to find algorithms for optimizing the filter banks. A theory for finding jointly optimized analysis and synthesis filter banks with arbitrary filter lengths and arbitrary delay through the filter bank is proposed. Theoretical results are included. Comparisons are made against the well known 5/3, 9/7, and 10/18 wavelets. The proposed filter banks, which are both rare and source dependent, have a better distortion rate performance for all cases

Keywords

FIR filters; image coding; wavelet transforms; arbitrary delay; arbitrary filter lengths; distortion rate performance; jointly optimized analysis filter banks; jointly optimized synthesis filter banks; minimum mean square error FIR filter banks; optimization algorithms; subband image coder; wavelets; Constraint optimization; Delay; Electronic mail; Filter bank; Filtering theory; Finite impulse response filter; Frequency; Image coding; Mean square error methods; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on

Conference_Location

Kobe

Print_ISBN

0-7803-5467-2

Type

conf

DOI

10.1109/ICIP.1999.821706

Filename

821706