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(a) Circular 2D model with spectral properties of 20 μmol blood content at 75% oxygen saturation of 60% water saturation, scattering amplitude and power of 1, and bioluminescence source distribution as shown. In (b) the reconstructed bioluminescence source are shown using 64 boundary measurements at 6 wavelengths without non-negativity constraints, and shown again produced with non-negativity constraints (c).
