Surface information has been extracted by means of the Fourier -wavelets transforms. The method is composed of the three major steps, the first is to extract the global difference between the two faces by Fourier analysis. The second step is that wavelets transform is applied to the data obtained by the first step in order to extract the local difference. Finally, a set of multi-resolution results of the wavelet transform gives the Fourier-wavelets extracted results. Even if a limited number of cases, we have succeeded in obtaining the new information in addition to the conventional results.
