Fig. 4.

Movies depicting the lumpy backgrounds of endogenous and exogenous optical properties using Lumpy object model. The lumps in μ_axi (0.72 MB) (a), μ_axf (0.78 MB) (b), and μ_sx (0.74 MB) (c) are shown as cutplanes to the breast geometry (Fig. 1) parallel to yz-plane. The snapshots shown above are cutplanes passing through x=−1 cm. In each case, one hundred lumps are uniformly generated in the hemispherical volume with spatial spreads of 5 mm and strength values equal to hundred percent of the average background values of optical properties as given in Table I.