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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Speckle Denoising through Local Rényi Entropy Smoothing
verfasst von : Salvador Gabarda, Gabriel Cristóbal
Erschienen in: Computer Analysis of Images and Patterns
Verlag: Springer Berlin Heidelberg
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Quality enhancement of radar images is highly related to speckle noise reduction. There are plenty of such techniques that have been developed by different authors. However, a definitive method has not been already attained. Filtering methods are popular to reduce speckle noise. This paper introduces a new method based on filtering a smoothed local pseudo-Wigner distribution using a local Rényi entropy measure. Results are compared to other well-known noise reduction filtering methods for artificially degraded speckle images and real world image examples. Experimental results confirm that this method outperforms other classical speckle denoising methods.