A new directional filter bank for image analysis and classification

Author

Park, Sang-il ; Smith, Mark J T ; Mersereau, Russell M.

Author_Institution

Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

3

fYear

1999

fDate

15-19 Mar 1999

Firstpage

1417

Abstract

A new directional filter bank for image analysis and classification is proposed. This paper introduces an improved structure in order to visualize subband outputs of the directional filter banks, while retaining the attractive properties of the original directional filter banks such as 1-D separable filtering, perfect reconstruction, and maximal decimation. Using this structure, any arbitrary 2ⁿ band directional filter bank can be implemented by cascading simple directional filter bank blocks, unlike the original structure that needs a parallel structure for visualizing subband outputs. Also, in order to have nondistorted phase information in the subbands for visualization, both FIR and IIR filter prototypes that can be implemented efficiently are provided for linear phase filtering. This paper shows the approach proposed here can be applied to image analysis and classification

Keywords

FIR filters; IIR filters; channel bank filters; image classification; linear phase filters; FIR filter; IIR filter; arbitrary 2ⁿ band directional filter bank; directional filter bank; image analysis; image classification; linear phase filtering; nondistorted phase information; subband outputs visualization; Filter bank; Finite impulse response filter; IIR filters; Image analysis; Image reconstruction; Information filtering; Information filters; Nonlinear filters; Prototypes; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.756247

Filename

756247