Fig. 7.

Human fingertip. (a) Uncorrected en face OCT image at ∼0.4 mm below skin surface and (b) corresponding motion-corrected OCT image. (c) Uncorrected and (d) corresponding motion corrected optical palpograms. The area outside of the fiducial marker has been masked out (in grey). $\overline{\sigma }$ is the average stress in kPa, and equivalently, pressure applied to the tissue during the scan. (e) Photograph of the fingertip with the fiducial marker in place. The inset highlights the region scanned by OCT. A, alignment artifact. C, crease in the skin on the fingertip. E. stress estimation artifacts.