Two-stage radar image despeckling based on local statistic Lee and sigma filtering

Vladimir V. Lukin; Nikolay N. Ponomarenko; Leonid Yu. Alekseyev; Vladimir P. Melnik; Jaakko T. Astola

doi:10.1117/12.424967

8 May 2001 Two-stage radar image despeckling based on local statistic Lee and sigma filtering

Vladimir V. Lukin, Nikolay N. Ponomarenko, Leonid Yu. Alekseyev, Vladimir P. Melnik, Jaakko T. Astola

Proceedings Volume 4304, Nonlinear Image Processing and Pattern Analysis XII; (2001) https://doi.org/10.1117/12.424967
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

The peculiarities of radar images and the problems of their filtering are considered. A two-stage procedure of radar image despeckling based on successive application of the local statistic Lee and sigma filters is proposed. The recommendations concerning filter parameter selection are presented. The performance characteristics of the proposed procedure are evaluated for a set of test artificial images. It is shown that the two-stage despeckling can be successfully applied to both images formed by side look aperture radar (SLAR) or synthetic aperture radar (SAR). An available trade-off of filter basic properties is provided. The examples for real data demonstrating the proposed procedure efficiency and benefits are also given.

Citation Download Citation

Vladimir V. Lukin, Nikolay N. Ponomarenko, Leonid Yu. Alekseyev, Vladimir P. Melnik, and Jaakko T. Astola "Two-stage radar image despeckling based on local statistic Lee and sigma filtering", Proc. SPIE 4304, Nonlinear Image Processing and Pattern Analysis XII, (8 May 2001); https://doi.org/10.1117/12.424967

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