Fig. C.1.

False positive cases (high predicted DSC but low observed DSC) for binary classification of the QCD final segmentation quality. The segmentations in the top row (A, B, C) were output by the QCD framework. These contours appeared acceptable and had high predicted DSCs ($\ge 0.7$). The bottom row (D, E, F) shows the corresponding manual contours, which appeared excessively eroded by the human operator, a valid approach in some studies aiming to limit partial volume effects. In these cases, the observed DSC values were “unfairly” low due to the low overlap between the narrow manual myocardial segmentations and the corresponding QCD outputs. Despite the low DSCs, the myocardial T1 values estimated by the QCD segmentations agreed with the manual estimations to within $\pm 6.5\%$.