PRVI
(Polarimetric Radar Vegetation Index)ΒΆ
This functionality computes the polarimetric Radar vegetation index for full polarimetric SAR data. The required input and the computed output are as follows:
input : input_T3/C3_folder, window_size
output: PRVI_FP.bin
The formlation of PRVI interms of degree of polarization and cross-pol backscatter intensity can be expressed as follows:
\[\text{PRVI}_{fp}=(1-\text{DOP}_{fp})\sigma^\circ_{\text{XY}}\]
where, \(\text{DOP}_{fp}\) 3D Barakt degree of polarization and can be expressed as shown below. Further details on the PRVI can be found in [[1]](#1)
\[\text{DOP}_{fp}=\sqrt{1-\frac{27\times\text{det([T3])}}{\text{(Trace[T3])}^3}}\]