Multifractal analysis of oil slicks on SAR images

Roberto Coscione; Gerardo Di Martino; Antonio Iodice; Daniele Riccio; Giuseppe Ruello

doi:10.1117/12.898153

26 October 2011 Multifractal analysis of oil slicks on SAR images

Roberto Coscione, Gerardo Di Martino, Antonio Iodice, Daniele Riccio, Giuseppe Ruello

Proceedings Volume 8179, SAR Image Analysis, Modeling, and Techniques XI; 81790H (2011) https://doi.org/10.1117/12.898153
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

In this paper we present a technique for the analysis of low intensity patches on SAR oceanic amplitude images. The proposed technique, which is based on multifractal analysis of the edges of dark areas (here called regions of interest, ROIs), can be used to identify oil slicks generated by moving ships. The core idea is that different physical-chemical interactions of oil slicks and look-alikes with the sea surface imply different multifractal features for the edges of the ROIs on the acquired images. Accordingly, we propose to perform a multifractal analysis on ROIs' edges, which consists in the estimation of their multifractal spectrum and in the evaluation of the "dispersion area" of this spectrum. The proposed procedure is tested on simulated SAR images and methods and results are extensively discussed. First results seem to indicate that the observation of multifractal spectra is useful in order to distinguish between oil slicks generated by moving ships from other kinds of slicks, even when these phenomena have the same degree of irregularity and an estimation of the classical fractal dimension is not suitable for discrimination purposes.

Citation Download Citation

Roberto Coscione, Gerardo Di Martino, Antonio Iodice, Daniele Riccio, and Giuseppe Ruello "Multifractal analysis of oil slicks on SAR images", Proc. SPIE 8179, SAR Image Analysis, Modeling, and Techniques XI, 81790H (26 October 2011); https://doi.org/10.1117/12.898153

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