Integer-modulated FIR filter banks for image compression

Author

Bi, M. ; Ong, S.H. ; Ang, Y.H.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

8

Issue

8

fYear

1998

fDate

12/1/1998 12:00:00 AM

Firstpage

923

Lastpage

927

Abstract

A method for designing perfect-reconstruction M-channel integer-modulated filter banks (IMFBs) is proposed. Given the filter coefficient word length, many IMFBs satisfying the perfect reconstruction conditions can be obtained. Methods to select the best IMFB for the purpose of image compression are studied, and it is demonstrated that the IMFB obtained by maximizing the coding gain is the most suitable for image coding. Simulation results show that the PSNR of the integer-modulated FIR filter bank designed by maximizing the coding gain with the AR(1) model is close to that of the real-valued cosine-modulated filter bank of the same order

Keywords

FIR filters; channel bank filters; data compression; digital filters; image coding; image reconstruction; modulation; transform coding; wavelet transforms; AR(1) model; M-channel modulated wavelet filter banks; PSNR; coding gain; filter coefficient word length; image coding; image compression; integer-modulated FIR filter banks; perfect reconstruction conditions; real-valued cosine-modulated filter bank; simulation results; wavelet transform coding; Bismuth; Channel bank filters; Delay; Design methodology; Filter bank; Finite impulse response filter; Image coding; Image reconstruction; Signal synthesis; Wavelet transforms;

fLanguage

English

Journal_Title

Circuits and Systems for Video Technology, IEEE Transactions on

Publisher

ieee

ISSN

1051-8215

Type

jour

DOI

10.1109/76.736717

Filename

736717