Noise robust oversampled linear phase perfect reconstruction filter bank with a lattice structure

Author

Tanaka, Toshihisa ; Yamashita, Yukihiko

Author_Institution

Sch. of Sci. & Eng., Tokyo Inst. of Technol., Japan

Volume

1

fYear

2002

fDate

2002

Abstract

An oversampled linear phase (LP) perfect reconstruction (PR) filter bank (FB) with a lattice structure involving a noise robust building block is presented. The structure is based on the generalized lapped pseudo-biorthogonal transform (GLPBT), which represents a large class of lapped transforms. Given an analysis bank of the GLPBT and a correlation matrix of noise, the proposed synthesis bank reduces the noise component and attains PR. Numerical results show that this class of filter bank is effective in transmission of oversampled data over noisy channels.

Keywords

channel bank filters; correlation methods; data communication; lattice filters; linear phase filters; matrix algebra; signal denoising; signal reconstruction; signal sampling; transforms; analysis bank; correlation matrix; image processing; lapped transforms; lattice structure; linear phase filter; noise robust building block; oversampled filter banks; perfect reconstruction; pseudo-biorthogonal transform; signal processing; synthesis bank; Delay; Filter bank; Image reconstruction; Image segmentation; Lattices; Noise reduction; Noise robustness; Phase noise; Signal generators; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing. 2002. Proceedings. 2002 International Conference on

ISSN

1522-4880

Print_ISBN

0-7803-7622-6

Type

conf

DOI

10.1109/ICIP.2002.1038039

Filename

1038039