Cosine-modulated 2-dimensional perfect reconstruction FIR filter banks with linear phase

Author

Nagai, Takuyuki ; Ikehara, Masaaki

Author_Institution

Fac. of Sci. & Technol., Keio Univ., Yokohama, Japan

Volume

3

fYear

1996

fDate

7-10 May 1996

Firstpage

1483

Abstract

In this paper, we propose a design method of cosine-modulated 2-dimensional (2-D) perfect reconstruction (PR) FIR filter banks, in which each analysis and synthesis filter has linear phase (LP). As in previous works, it is impossible to design the 2-D cosine modulated system which satisfies both the PR condition and LP property. However, in 2-D signal processing, it is very important for each filter to have the LP property. Our main goals are to show such a system can be realized by considering a new decomposition scheme and derive the conditions for PR and LP. A design example is included to show the effectiveness of this paper

Keywords

FIR filters; delay circuits; signal reconstruction; two-dimensional digital filters; 2-D signal processing; analysis filter; cosine-modulated 2-dimensional perfect reconstruction FIR filter banks; decomposition scheme; design method; linear phase; synthesis filter; Band pass filters; Design methodology; Filter bank; Finite impulse response filter; Image reconstruction; Matrix decomposition; Phase modulation; Prototypes; Sampling methods; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.543943

Filename

543943