Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47611
Title: Introducing a new image quality index for evaluating despeck-ling filtering operation in SAR images
Authors: Gomez, L. 
Buemi, M. E.
Jacobo-Berlles, J.
Mejail, M.
UNESCO Clasification: 220990 Tratamiento digital. Imágenes
Keywords: Synthetic Aperture Radar
despeckling filter
Issue Date: 2014
Journal: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR 
Conference: 10th European Conference on Synthetic Aperture Radar (EUSAR) 
Abstract: © VDE VERLAG GMBH · Berlin · Offenbach, Germany.SAR (Synthetic Aperture Radar) images are corrupted with a multiplicative granular-like noise pattern known as speckle. The goal for a despeckling filter consists of suppressing the speckle while preserving all the scene features such as texture, point-type targets, and, especially, edges. There exist several speckle filtering and a relevant number of image quality indexes to evaluate the performances of a filtering operation on a SAR image. To decide the superiority of a despeckling filter other one, if so, is not a trivial issue. In this work, we present a new estimator based on the gradient-ratio operator which allows to help in evaluating a filter realization on SAR images.
SAR (Synthetic Aperture Radar) images are corrupted with a multiplicative granular-like noise pattern known as speckle. The goal for a despeckling filter consists of suppressing the speckle while preserving all the scene features such as texture, point-type targets, and, especially, edges. There exist several speckle filtering and a relevant number of image quality indexes to evaluate the performances of a filtering operation on a SAR image. To decide the superiority of a despeckling filter other one, if so, is not a trivial issue. In this work, we present a new estimator based on the gradient-ratio operator which allows to help in evaluating a filter realization on SAR images.
URI: http://hdl.handle.net/10553/47611
ISSN: 2197-4403
Source: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR[ISSN 2197-4403], p. 1117-1120
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