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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 |
Appears in Collections: | Actas de congresos |
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