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https://open.uns.ac.rs/handle/123456789/10768
Nаziv: | Impulse noise filtering using robust pixel-wise S-estimate of variance | Аutоri: | Petrović, N. Crnojević V. |
Dаtum izdаvаnjа: | 11-авг-2010 | Čаsоpis: | Eurasip Journal on Advances in Signal Processing | Sažetak: | A novel method for impulse noise suppression in images, based on the pixel-wise S-estimator, is introduced. The S-estimator is an alternative for the well-known robust estimate of variance MAD, which does not require a location estimate and hence is more appropriate for asymmetric distributions, frequently encountered in transient regions of the image. The proposed computationally efficient modification of a robust S-estimator of variance is successfully utilized in iterative scheme for impulse noise filtering. Another novelty is that the proposed iterative algorithm has automatic stopping criteria, also based on the pixel-wise S-estimator. Performances of the proposed filter are independent of the image content or noise concentration. The proposed filter outperforms all state-of-the-art filters included in a large comparison, both objectively (in terms of PSNR and MSSIM) and subjectively. © 2010 V. Crnojević and N. I. Petrović. | URI: | https://open.uns.ac.rs/handle/123456789/10768 | ISSN: | 16876172 | DOI: | 10.1155/2010/830702 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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