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Attenuation coefficients (standard error) estimated by the OCT slope method (Eq. (3)) and the proposed method (Eq. (17)) from the uniform phantoms (fitted over 0.25 mm) for different TiO2 weight concentrations.
| TiO2 conc. (w%) | OCT slope (mm−1) | μ (mm−1) |
|---|---|---|
| 0 | 1.1 (0.8) | 0.85 (0.12) |
| 0.01 | 1.5 (0.3) | 0.83 (0.04) |
| 0.025 | 1.3 (0.16) | 1.1 (0.02) |
| 0.05 | 1.7 (0.15) | 1.4 (0.02) |
| 0.1 | 1.6 (0.12) | 1.8 (0.03) |
| 0.25 | 3.1 (0.10) | 3.1 (0.04) |
| 0.5 | 5.3 (0.13) | 5.2 (0.07) |
| 1 | 8.8 (0.17) | 7.8 (0.2) |
