Quadratic linear filters for signal detection and image segmentation

Author

Taft, J.D. ; Bose, N.K.

Author_Institution

Westinghouse Electr. Corp., Pittsburgh, PA, USA

fYear

1988

fDate

11-14 Apr 1988

Firstpage

1140

Abstract

An analysis of the quadratic-linear (QL) filter, for improving signal detection capability and facilitating image segmentation, is carried out. The principal results are the solutions for QL filters under the generalized deflection criterion and Gaussian input assumptions; the establishment of mapping order properties for two-dimensional implementations of linear, pure quadratic, and QL filters; and the definition of regions of superior performance for the QL filter as compared to linear and quadratic filters under Gaussian assumptions when the input has separated means and separated variances

Keywords

filtering and prediction theory; picture processing; signal detection; Gaussian input assumptions; QL filters; deflection criterion; image segmentation; linear filters; mapping order properties; pure quadratic filters; quadratic linear filters; separated means; separated variances; signal detection; two-dimensional implementations; Detectors; Finite impulse response filter; Image edge detection; Image segmentation; Matched filters; Nonlinear filters; Radar detection; Signal detection; Sonar detection; Testing;

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.1988.196798

Filename

196798