Fig. 3.

Results for best feature set selection. For the PS-OCT-based classifier, (a) is the top 100 high-rank feature distribution sorted by mRMR rank, and (b) is the feature distribution after forward searching, where the best 17 features are marked in red. For the intensity-only classifier, (c) is the top 100 high-rank feature distribution sorted by mRMR rank, and (d) is the feature distribution after forward searching, where the best 10 features are marked in red. Colored regions represent features from degree of polarization uniformity (DOPU, purple), local phase retardation (LPR, blue), intensity (I, turquoise), phase difference (PD, dark yellow) and phase retardation (PR, yellow), respectively.