A filter bank for the directional decomposition of images: theory and design

Author

Bamberger, Roberto H. ; Smith, Mark J T

Author_Institution

Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

40

Issue

4

fYear

1992

fDate

4/1/1992 12:00:00 AM

Firstpage

882

Lastpage

893

Abstract

The authors introduce a directionally oriented 2-D filter bank with the property that the individual channels may be critically sampled without loss of information. The passband regions of the component filters are wedge-shaped and thus provide directional information. It is shown that these filter bank outputs may be maximally decimated to achieve a minimum sample representation in a way that permits the original signal to be exactly reconstructed. The authors discuss the theory for directional decomposition and reconstruction. In addition, implementation issues are addressed where realizations based on both recursive and nonrecursive filters are considered

Keywords

picture processing; two-dimensional digital filters; 2-D filter bank; directional decomposition; directional information; directional reconstruction; image decomposition; nonrecursive filters; passband; recursive filters; Band pass filters; Channel bank filters; Computer vision; Filter bank; Image coding; Image reconstruction; Information filtering; Information filters; Nonlinear filters; Passband;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.127960

Filename

127960