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Proceedings Paper

Adaptive alfa-trimmed filters for speckle image processing
Author(s): Vladimir V. Lukin; Vladimir P. Melnik; Victor I. Chemerovsky; Jaakko T. Astola; Pauli Kuosmanen; Kari P. Saarinen
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Paper Abstract

A new class of adaptive (alpha) -trimmed filters well suited for processing of images corrupted with non-symmetrical p.d.f. speckle and impulsive noise is proposed. It is shown that in certain cases one can provide a better speckle reduction and impulse removal by non-symmetrical trimming. Appropriate edge/detail preservation is ensured due to adaptation of the scanning window size or application of detail preserving Lpq-filter. Selection of adaptation parameter is discussed as well. The efficiency and properties of the proposed filters are demonstrated and quantitatively evaluated for test and real data.

Paper Details

Date Published: 6 April 1998
PDF: 11 pages
Proc. SPIE 3304, Nonlinear Image Processing IX, (6 April 1998); doi: 10.1117/12.304601
Show Author Affiliations
Vladimir V. Lukin, Kharkov Aviation Institute (Ukraine)
Vladimir P. Melnik, Kharkov Aviation Institute (Finland)
Victor I. Chemerovsky, Kharkov Aviation Institute (Ukraine)
Jaakko T. Astola, Tampere Univ. of Technology (Finland)
Pauli Kuosmanen, Tampere Univ. of Technology (Finland)
Kari P. Saarinen, Visy Oy (Finland)

Published in SPIE Proceedings Vol. 3304:
Nonlinear Image Processing IX
Edward R. Dougherty; Jaakko T. Astola, Editor(s)

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