A New DCT-based Multiresolution Method for Simultaneous Denoising and Fusion of SAR Images

Radford, D.; Kurekin, Andrey A.; Marshall, David; Lever, K.V.

doi:10.1109/icif.2006.301609

Cited by 2 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The result is generally a high reduction of speckle noise in areas that are homogeneous, but the image is oversmoothed due to losses in details and edges in heterogeneous areas. Other successful despeckling techniques are based on the Wiener filter and the discrete cosine transform (DCT) [35][36][37]. The Wiener filter is specially suitable for speckle suppression, due to the consideration that the autocorrelation of speckle in SAR images is not negligible for non-zero lags.…”

Section: Speckle Filteringmentioning

confidence: 99%

Statistical Analysis of SAR Sea Clutter for Classification Purposes

et al. 2014

View full text Add to dashboard Cite

Statistical analysis of radar clutter has always been one of the topics, where more effort has been put in the last few decades. These studies were usually focused on finding the statistical models that better fitted the clutter distribution; however, the goal of this work is not the modeling of the clutter, but the study of the suitability of the statistical parameters to carry out a sea state classification. In order to achieve this objective and provide some relevance to this study, an important set of maritime and coastal Synthetic Aperture Radar data is considered. Due to the nature of the acquisition of data by SAR sensors, speckle noise is inherent to these data, and a specific study of how this noise affects the clutter distribution is also performed in this work. In pursuit of a sense of wholeness, a thorough study of the most suitable statistical parameters, as well as the most adequate classifier is carried out, achieving excellent results in terms of classification success rates. These concluding results confirm that a sea state classification is not only viable, but also successful using statistical parameters different from those of the best modeling distribution and applying a speckle filter, which allows a better characterization of the parameters used to distinguish between different sea states.

show abstract

Section: Speckle Filteringmentioning

confidence: 99%