Fig. 2From: Reference-free determination of tissue absorption coefficient by modulation transfer function characterization in spatial frequency domainThe μ a -sensitivity calculations at a \(\mu^{\prime}_{s}\) = 0.4 mm−1, b \(\mu^{\prime}_{s}\) = 1.0 mm−1, c \(\mu^{\prime}_{s}\) = 1.6 mm−1, and d \(\mu^{\prime}_{s}\) = 2.2 mm−1 Back to article page