Fig. 3.

(a) The median and interquartile ranges of the relative error in $R_{\text{Cuccia}}(k)$ [Eq. (4)], $R_{\mathrm{PCBC}}(\mathrm{k})$ [Eq. (10)] and $R_{\mathrm{EBC}}(k)$ [Eq. (11)] versus the simulated reflectance. (b) Zoom-in view of Fig. 3(a). Using $R_{\mathrm{PCBC}}(k)$ instead of $R_{\text{Cuccia}}(k)$ reduces the median relative error in the expected reflectance by 45% from 0.011 to 0.006.