Fig. 3.

Phantoms with ${\mu }_s^{\prime }$ held constant with γ variation. (a) Photograph, (b) annotated D_f , and (c)–(e) demodulated reflectance images at λ = 658 nm and f _x = [0; 0.2; 0.5] mm . (f ) Normalized plot of percentage change in reflectance versus D_f for each spatial frequency. Recovered maps of γ(658 nm), scatter slope B, and ${\mu }_s^{\prime }$(658 nm) are shown in (g), (h), and (i), respectively. Below are plots of recovered optical property values versus D_f in (j), (k), and (l), where the blue error bars represent recovered mean values ± one standard deviation, the black circles represent the Mie theory-predicted γ(658 nm) and ${\mu }_s^{\prime }$(658 nm) values, and the black dotted line represents a regression of scatter slope B versus D_f (r = 0.993). Scale bar is 2 mm.