Fig. 8.

Preliminary demo for deep-penetrating OR-PAM imaging using a hair phantom covered with chicken tissues of different thicknesses. (a1–a4) Experimentally acquired AR-PAM images. (b1–b4) Network output results corresponding to tissue thicknesses of 0 (no tissue covered), 700, 1300, and 1700 µm. The white and green dashed boxes in (a1–a4) and (b1–b4) denote the ROIs for object and background, respectively, and the cyan lines indicate the positions for measuring the hair edge 10–90% rise distance. (c) CNR and (d) measured hair width versus different penetration depths (tissue thicknesses) for both AR-PAM images and the network output results. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)