Analyse a 3D OCT volume of the calibration target and saves the following results:
surface_amp : surface (air-fantom) reflection amplitude
surface_pos : surface distance in pixel on the A-line
surface_FWHM : FWHM of the reflection due to the surface
bottom_amp : bottom (fantom-aluminium) reflection amplitude
bottom_pos : bottom distance in pixel on the A-line
bottom_FWHM : FWHM of the reflection
expD_amp : amplitude of exponentiel decay in the fantom (related to scattering coefficient)
expD_L : attenuation length of the exponential decay in the fantom (related to attenuation length of the fantom and OCT axial sensitivity)
offset : noise level in the A-line
surface_snr : ratio between the surface interface reflection amplitude to the RMS signal variation for a window around the pic
bottom_snr : ratio between the bottom interface reflection amplitude to the RMS signal variation for a window around the pic
fit_success : success value returned by the least square fit algorithm
fit_error : RMS of error between fit and data