A four-component decomposition integrating selective deorientation and generalized volume scattering

In this paper, we proposed an Integrated Four-component Model-based Decomposition (IFMD) based on multi-look covariance matrix integrating the selective de-orientate and the generalized volume scattering. Firstly, a generalized volume scattering model (GVSM) is adopted to substitute the volume scattering of Freeman Decomposition. Then, the Cross Polarization Correlation Coefficient is adopted as a criterion to judge whether the target is reflection symmetric and we only de-orientate those non-reflection symmetric targets. For targets still being non-reflection symmetric after the de-orientation, the helix scattering is exploit to compensate the non-reflection symmetric components. Finally, the power constrain procedures are added to eliminate the negative pixels completely. The effectiveness of the IFMD is demonstrated by the L band airborne E-SAR data.