Fig. 3.

Comparisons between fluence cross-sectional plots before and after denoising in three benchmarks: (c and d) a homogeneous domain (B1), (e and f) a cubic domain with an absorbing inclusion (B2) or (g and h) a reflective inclusion (B3). In each pair, we show the fluence maps before (c, e, and g) and after (d, f, and h) the denoising filter. For visual comparison, we also show the plots for running ${10}^6$ photons for the homogeneous case in (a) and its denoised version in (b). All fluence plots are shown in ${\log }_{10}$ scale.