Fig. 1. Schematic of handheld SSOCT system

Fig. 2. Schematic of data acquisition process

Fig. 3. Flowchart of optimized DSDLI algorithm

Fig. 4. Imaging results of left palm. (a)Location of palm imaged in experiments; (b) (c) en-face images of blood flow recovered by existing and new DSDLI algorithms, respectively; (d) (e) cross-section images recovered by existing and new DSDLI algorithms, respectively

Fig. 5. Three-dimensional images. (a) Three-dimensional structure image reconstructed from obtained cross-section image of structure; (b) three-dimensional blood flow image reconstructed from cross-section image of blood flow