Design of directional filters using downsampling

Author

Suzuki, Satoshi ; Ikehara, Masaaki

Author_Institution

Dept. of Electr. Eng., Keio Univ., Japan

Volume

2

fYear

1996

fDate

26-29 Nov 1996

Firstpage

822

Abstract

We present a design method of a directionally oriented 2-D filter (directional filters) and filter bank. At first, we consider the 2-D prototype passband filter. Next, using downsampling, we decimate the prototype filter coefficient and design the directional filters. The passband regions of the component filters are wedge shaped and thus provide the directional information. By using this method, we can reduce the number of filters which we must design. Finally, we show the 2-D filter bank structure with above-mentioned filter

Keywords

band-pass filters; filtering theory; signal sampling; two-dimensional digital filters; 2D filter bank structure; 2D prototype passband filter; component filters; directional filters design; directional information; directionally oriented 2D filter; downsampling; filter bank design; passband regions; prototype filter coefficient; wedge shaped; Band pass filters; Design methodology; Digital filters; Digital signal processing; Filter bank; Information filtering; Information filters; Low pass filters; Passband; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON '96. Proceedings., 1996 IEEE TENCON. Digital Signal Processing Applications

Conference_Location

Perth, WA

Print_ISBN

0-7803-3679-8

Type

conf

DOI

10.1109/TENCON.1996.608452

Filename

608452