Adaptive alfa-trimmed filters for speckle image processing

Vladimir V. Lukin; Vladimir P. Melnik; Victor I. Chemerovsky; Jaakko T. Astola; Pauli Kuosmanen; Kari P. Saarinen

doi:10.1117/12.304601

6 April 1998 Adaptive α-trimmed filters for speckle image processing

Vladimir V. Lukin, Vladimir P. Melnik, Victor I. Chemerovsky, Jaakko T. Astola, Pauli Kuosmanen, Kari P. Saarinen

Proceedings Volume 3304, Nonlinear Image Processing IX; (1998) https://doi.org/10.1117/12.304601
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States

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 L_pq-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.

Citation Download Citation

Vladimir V. Lukin, Vladimir P. Melnik, Victor I. Chemerovsky, Jaakko T. Astola, Pauli Kuosmanen, and Kari P. Saarinen "Adaptive α-trimmed filters for speckle image processing", Proc. SPIE 3304, Nonlinear Image Processing IX, (6 April 1998); https://doi.org/10.1117/12.304601

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