Nonlinear recursive filters and applications to image processing

Author

Tsai, Tu-Chih ; Anastassiou, Dimitris

Author_Institution

Dept. of Electr. Eng., Columbia Univ., New York, NY, USA

fYear

1988

fDate

11-14 Apr 1988

Firstpage

828

Abstract

Stability conditions for nonlinear recursive filters are established. The results are applied to nonlinear recursive filters of the form y(n)=f[x(n), y (n-1)]. In the case of image filtering by incorporating with a multi-directional scheme, a two-dimensional nonlinear recursive image filter, satisfying these conditions, with combined edge-sharpening and noise-smoothing characteristics has been developed. It can be used for image enhancement or restoration, or as a pre-processor for coding techniques

Keywords

encoding; filtering and prediction theory; filters; picture processing; smoothing circuits; stability; coding techniques; edge-sharpening; image enhancement; image filtering; image processing; image restoration; multi-directional scheme; noise-smoothing; nonlinear recursive filters; stability conditions; Chaos; Filtering; Frequency; Image coding; Image enhancement; Image processing; Image restoration; Nonlinear filters; Power filters; Stability criteria;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Conference_Location

New York, NY

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1988.196714

Filename

196714

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2999986