From: PolSAR image classification based on Laplacian Eigenmaps and superpixels
Features | Expression |
---|---|
Span | |s hh|2 + 2|s hv|2 + |s vv|2 |
Amplitude of HH-VV correlation coefficient | \( \left|\frac{\left\langle {s}_{\mathrm{hh}}{s}_{\mathrm{vv}}^{\ast}\right\rangle }{\sqrt{{\left|{s}_{\mathrm{hh}}\right|}^2{\left|{s}_{\mathrm{vv}}\right|}^2}}\right| \) |
Ratio of HV/VV (db) | 10 log(|s hv|2/|s vv|2) |
Co-polarized ratio (db) | 10 log(|s vv|2/|s hh|2) |
Cross-polarized ratio (db) | 10 log(|s hv|2/|s hh|2) |
Co-polarized HH backscattering coefficient | \( \left\langle {s}_{\mathrm{hh}}{s}_{\mathrm{hh}}^{\ast}\right\rangle \) |
Co-polarized VV backscattering coefficient | \( \left\langle {s}_{\mathrm{vv}}{s}_{\mathrm{vv}}^{\ast}\right\rangle \) |
Co-polarized HV backscattering coefficient | \( \left\langle {s}_{\mathrm{hv}}{s}_{\mathrm{hv}}^{\ast}\right\rangle \) |
Phase of HH-VV | \( \arg \left(\left\langle {s}_{\mathrm{hh}}{s}_{\mathrm{vv}}^{\ast}\right\rangle \right) \) |
Phase of HH-HV | \( \arg \left(\left\langle {s}_{\mathrm{hh}}{s}_{\mathrm{hv}}^{\ast}\right\rangle \right) \) |
Phase of HV-VV | \( \arg \left(\left\langle {s}_{\mathrm{hv}}{s}_{\mathrm{vv}}^{\ast}\right\rangle \right) \) |
Pauli decomposition | |a|2, |b|2, |c|2 |
Krogager (SDH) decomposition | k s , k d , k h |
Cloud decomposition | H, ∂, A |
Freeman-Durden decomposition | P s , P d , P v |
Yamaguchi decomposition | f h , f s , f d , f v |