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(a) FROC curves for 6–9 mm polyps on test data which show no interpolation and three interpolations. The curves show the benefits of the interpolation for small polyps. (b) jafroc FOM for different modalities. (modalities 1–4 represent CAD without interpolation, CAD with linear, quadratic B-spline and cubic B-spline interpolation, respectively.) Error bars present 95% confidence intervals.
