Fig. 4.

Reconstruction results of human skin. (a) is obtained using 100% spectral data. (b) is obtained using 25% spectral data for each A-scan and no under-sampling is applied in the fast-scanning direction. (c) and (d) are obtained using the proposed method, with the wavelet transformation and Fourier transformation as sparsifying operators, respectively. The under-sampling rates for the axial direction and fast-scanning direction are both 50%. The scale bars represent 100 μm. The image size in pixel is 900×925.