Wideband fingerprint demodulation via bi-dimensional multirate frequency transformations

In prior work, the AM-FM signal model coupled with dominant component analysis has been used for fingerprint extraction for eventual fingerprint recognition. In earlier work by the authors, multirate frequency transformations were employed to transform wideband signals into narrowband signals to effect wideband AM-FM demodulation of both 1D and 2D signals. In this paper, we apply the 2D, wideband AM-FM energy-based demodulation approach towards AM-FM feature extraction and recognition. Simulation results are used to demonstrate the efficacy of the proposed approach.