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Conference Paper (Conference Proceedings)
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Artigo
Comunicação Técnica
Abstract
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After briefly reviewing some classical filters for speckle removal, five filters with characteristics of robustness, suitable for speckle noise reduction, are derived and implemented. These filters are the ones based on the trimmed maximum likelihood and moments estimators, the ones based on the median, on the inter-quartile range and on the median absolute deviation. Assuming that observations within a synthetic aperture radar image are outcomes of independent Rayleigh random variables, these filters exhibit a good performance from both the signal-to-noise reduction and from the edge preserving criteria. The problem of filtering in an image is posed as an estimation problem.
Theme
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Síntese de Imagens
Reconhecimento de Padrões
Visualização de Dados
Visão por Computador
Modelagem Geométrica
Aplicações em Medicina
Modelagem e Visualização
Morfologia Matemática
Animação e Multimídia
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Portuguese
Spanish
English
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cintiagraziele.silva@gmail.com
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