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Proceedings Paper

Speckle reduction: filtering related to spatial resolution
Author(s): Catherine Mering; Jean-Francois Parrot
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Paper Abstract

We have experimented on the effects on SAR ERS1 scenes of two classes of filters designed for speckle reduction according to the size of the objects to be extracted. The valuation of both classes of filters is done by two criteria: homogeneity and connectivity. The first class of filters is devoted to the extraction of thin features. In this case, the various filters operate within an elementary neighborhood. The filters belonging to the second class enable the extraction of larger elements. These filters are alternated sequential filters obtained by composition of morphological filters using structuring elements of increasing size. The comparison of the results provided by these filters, as well as the parameters quantifying homogeneity and connectivity, will allow the choice of the more accurate filter in order to ensure the extraction of features of various sizes on SAR-ERS1 images.

Paper Details

Date Published: 21 November 1995
PDF: 12 pages
Proc. SPIE 2584, Synthetic Aperture Radar and Passive Microwave Sensing, (21 November 1995); doi: 10.1117/12.227121
Show Author Affiliations
Catherine Mering, ORSTOM and Univ. de Paris VI--Pierre et Marie Curie (France)
Jean-Francois Parrot, ORSTOM and Univ. de Paris VI--Pierre et Marie Curie (France)

Published in SPIE Proceedings Vol. 2584:
Synthetic Aperture Radar and Passive Microwave Sensing
Giorgio Franceschetti; Christopher John Oliver; James C. Shiue; Shahram Tajbakhsh, Editor(s)

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