Fig. 10.

Psychophysical model responses of observer probability to accurately detect (localize) a lesion as a function of lesion size and lesion-to-background contrast ratio. (a)–(g) Results shown for each observer individually (ordered by fitted parameter $D$) and (h) all observers combined, corresponding to Fig. 9. Black curves represent the 80% and 95% probability of lesion detection levels. Experimentally sampled space used to train the classifier is indicated by black rectangle, and probabilities outside the rectangle are extrapolated. Fitted model parameters are shown in white text.