Local interpolation in multiresolution decomposition of images

Author

Simon, B. ; Mertès, J.Y. ; Ciblat, Ph ; Macq, B.

Author_Institution

Lab. TELE, Univ. Catholique de Louvain, Belgium

Volume

1

fYear

1996

fDate

16-19 Sep 1996

Firstpage

287

Abstract

A simple interpolation method from low frequencies to high frequencies in a two-band filter bank is shown to be a very efficient way for enhancing signal zooming or for erasing blocking artifacts. This paper introduces a new and simple way for generating that spatial adaptability of the filters. It shows that a linear interpolation between the two subbands can be reduced to a modification of the filters. From this result, a local adaptation of the filters is envisaged for two applications: signal zooming and reduction of blocking artifacts in multigrid decomposition of images

Keywords

adaptive filters; adaptive signal processing; band-pass filters; filtering theory; image enhancement; image resolution; interpolation; blocking artifacts; high frequencies; linear interpolation; local adaptation; local interpolation; low frequencies; multigrid decomposition of images; multiresolution image decomposition; signal zooming; spatial adaptability; two-band filter bank; Decorrelation; Filter bank; Frequency; Image coding; Image reconstruction; Image resolution; Interpolation; Nonlinear filters; Signal resolution; Spatial resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1996. Proceedings., International Conference on

Conference_Location

Lausanne

Print_ISBN

0-7803-3259-8

Type

conf

DOI

10.1109/ICIP.1996.559489

Filename

559489