Dichotomy Decomposition-based Target Scattering Vector Parameters

In this study, the eigenvector-based polarimetric feature extraction methods are analyzed based on the target dichotomy decomposition. The eigenvector-based scattering characterization methods, including the α / ß scattering model, Touzi's scattering model, and a recently developed scattering vector parameterization model, are applied to the single scattering matrix decomposed by the stable Huynen decomposition, i.e., Yang's decomposition. Experiments are performed on RADARSAT-2 data acquired over an oil spill area, where several scattering behaviors are presented such as backscatter from ships and the metallic target, ocean surface, oil slicks, and the multiple reflections between ships and ocean surface. Results show that the dichotomy decomposition-based scattering vector parameters are effective in characterizing the dominant scattering mechanism of targets.