Figure 11.

(a) Estimates of ${\mu }_{\mathrm{s},2}^{\prime }$ for d₁ between 15 and 150 μm, μ_{a, 1} between 0.10 and 2.00 mm⁻¹, ${\mu }_{\mathrm{s},1}^{\prime }$ equaling 1 mm⁻¹, μ_{a, 2} between 0.01 and 0.20 mm⁻¹, and ${\mu }_{\mathrm{s},2}^{\prime }$ between 0.50 and 2.00 mm⁻¹ determined by the direct neural network approach. (b) Histogram of the relative percent estimation error.