1. A method for biometric recognition, comprising the steps of: decomposing, using a wavelet transform process, a profile of an image of the biometric into a plurality of wavelets at varying decomposition levels; determining a relative value for a plurality of pixel locations on the biometric profile; determining, from the plurality of wavelets, wavelet coefficient values for each pixel location; calculating a signal comprising at least one spatial descriptor by: (1) calculating, from the plurality of wavelets, linear relations between the wavelet coefficient values in each decomposition level and a scaling value for each decomposition level, and (2) calculating ratios between relative values for the plurality of pixel locations and said linear relations; assembling a biometric template using the signal, the biometric template reflecting the at least one spatial descriptor; identifying the spatial descriptors in the biometric template; and comparing the spatial descriptors in the biometric template to spatial descriptors in a second biometric template.