Textural-partially correlated polarimetric K-distribution

A generalized polarimetric K-distribution is derived for characterizing multi-look fully polarimetric SAR data, on the basis that the underlying texture structures in polarization channels assume a trivariate joint gamma distribution with partial correlation and that the co-polarized and cross-polarized speckle components are de-correlated. Since the resulting K-distribution is in the form of a one-dimensional integral-difficult to be tested experimentally-a validation scheme for the model is then suggested using the theoretical joint moments corresponding to the generalized K-distribution