Fig. 9.

Statistics of the relative errors of the estimates with different photon budgets $P_b$ (images from left to right) when the domain was illuminated from all boundaries. For each photon budget: S-SGN method (blue, left), A-SGN method (red, right), and the reference reconstruction (black, horizontal dashed line). Blue and red vertical lines (whiskers) denote all the samples excluding outliers, box denotes the 25th and 75th percentile, horizontal line denotes the median, and + symbol denotes outliers.