Fig. 3: Classification of new phase traces and validation of their origins.

a The trained SVM decision boundaries for the Type-I signal (red) and the Type-II signal (blue). The dots represent phase traces extracted from a new dataset, preprocessed, and projected onto the same 3D feature space. They were classified into Type-I signals (red dots), Type-II signals (blue dots), intermediate phase traces (brown dots), and outliers (gray dots). b An enlarged view of the dashed box in Fig. 1b, with contrast adjustment to enhance the RPE visibility. The histograms of Type-I (red bins) and Type-II (blue bins) signals, fitted by Gaussian functions (solid lines), display the depth distribution of the signals overlaid on top of the despeckled structural image, with a yellow line representing the averaged intensity profile. The colored bars on the left correspond to the depth range from which the signals in Fig. 1d were extracted. c Type-I, Type-II, and SRS signals extracted from a prolonged recording. Source data of Fig. 3c are provided as a Source Data file.