A low complexity overcomplete directional image pyramid

Author

Rosiles, Jose Gerardo ; Smith, Mark J T

Author_Institution

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

Volume

1

fYear

2003

fDate

14-17 Sept. 2003

Abstract

An undecimated directional filter bank (UDFB) derived from the DFB originally proposed by Bamberger and Smith is proposed. The new UDFB has excellent orientation selectivity, and maintains the low computational complexity from its predecessor. While over complete, the UDFB presents other properties like shift invariance, desirable for some image analysis applications. Using ladder structures the overall directional response is readily controlled by 1D prototypes which are easy to design. We combine the UDFB with over complete pyramidal structures to form directional pyramids with excellent radial and directional selectivity.

Keywords

channel bank filters; image denoising; image enhancement; image texture; directional image pyramid; directional selectivity; image analysis application; ladder structure; radial selectivity; shift invariance; undecimated directional filter bank; Discrete wavelet transforms; Filter bank; Filtering; Image analysis; Image processing; Image segmentation; Image texture analysis; Nonlinear filters; Prototypes; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on

ISSN

1522-4880

Print_ISBN

0-7803-7750-8

Type

conf

DOI

10.1109/ICIP.2003.1247146

Filename

1247146