Table 1. RMS errors of the reconstructed Stokes images.

Letter	Polarization angle (°)	$\frac{{\mathrm{S}}_1}{{\mathrm{S}}_0}$ theory	$\frac{{\mathrm{S}}_2}{{\mathrm{S}}_0}$ theory	$\frac{{\mathrm{S}}_1}{{\mathrm{S}}_0}$ RMSE (%)	$\frac{{\mathrm{S}}_2}{{\mathrm{S}}_0}$ RMSE (%)
N	5	0.985	0.17	0.71	0.59
C	166	0.883	−0.47	2.09	0.94
S	99	−0.951	−0.31	1.47	0.73
U	142	0.242	−0.97	1.14	2.51