Fig. 2: Validation of the data analysis pipeline for fiber-based SCOS.

a Schematic experimental setup for LED measurements of the static phantom sample. The DC powered 850 nm LED is placed 15 mm away from detector fiber bundle. b Schematic experimental setup for human forehead LED measurements. c \({K}_{{raw}}^{2}\) and \({K}_{f}^{2}\) as a function of mean intensity \(\left\langle I\right\rangle\) for the phantom sample LED measurements. d An example time course of \({K}_{{raw}}^{2}\) and \({K}_{f}^{2}\) for human forehead LED measurements.