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(a) Experimental set-up of the MS-LSCI system based on the wavelength-swept laser including phantom used for validation experiments. (CL: collimation lens; OD: optical diffuser; DAQ: data acquisition). (b) Peak-hold mode spectrum of the wavelength-swept laser. (c) MS-LSCI image conversion process. Processed images on the left and right sides represent laser speckle contrast and multi-spectral absorbance images derived from the original raw images, respectively.
