Complementary filter banks for image compression

Author

Almeida, Maria G. ; Chaparro, Luis F.

Author_Institution

Dept. de Engenharia Electr., Univ. Fed. de Minas Gerais, Belo Horizonte, Brazil

fYear

1997

fDate

14-17 Oct 1997

Firstpage

195

Lastpage

202

Abstract

In this paper we present a nonseparable complementary filter (CF) bank for image compression. We base our design of the filter bank on the two-dimensional (2D) multirate processing and on properties of complementary filters. Perfect reconstruction is guaranteed when the CF bank is implemented with quincunx sampling and filtering, but not otherwise. In all cases, however the analysis and synthesis are performed without aliasing. The CF bank can be related to wavelet theory, permitting us to derive scale and wavelet functions for different sampling and filters. Examples illustrating the performance of the CF banks in image data compression are given

Keywords

data compression; filters; image coding; image reconstruction; wavelet transforms; complementary filter banks; complementary filters; filtering; image compression; image data compression; quincunx sampling; reconstruction; sampling; wavelet theory; Channel bank filters; Data compression; Filter bank; Filtering theory; Image analysis; Image coding; Image reconstruction; Image sampling; Mirrors; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Graphics and Image Processing, 1997. Proceedings., X Brazilian Symposium on

Conference_Location

Campos do Jordao

Print_ISBN

0-8186-8102-0

Type

conf

DOI

10.1109/SIGRA.1997.625176

Filename

625176