A unitary Mueller-based view of polarimetric SAR oil slick observation

Synthetic aperture radar (SAR) oil slick observation is a topic of great applicative relevance which has been physically recast by a set of new polarimetric approaches that exploit the departure from Bragg scattering. In this article, under a unitary Mueller-based view, all the approaches are revisited and reformulated in terms of Mueller matrix elements. This new view is of theoretical and applicative relevance because it allows us to 'unify' the output parameters in the same range and, therefore, makes possible a fair ranking of these approaches.