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PR-OCT imaging procedures. A. Homemade SS-OCT system: FC: fiber coupler, CR: circulator, FPC: fiber polarization controller, CL: collimator, ATT: attenuator, MR: mirror, GV: galvo mirror system, OBJ: objective lens, PD: photodetector, DAQ PC: data acquisition computer; B. An illustration of RetinaNet. The left part is an FPN with a ResNet-18 backbone, and the right part are two sub-networks predicting the classifications and locations.
