Algorithm based on fractional difference was used for the edge extraction of thenar palm print image. Based on fractional order difference function which was deduced from classical fractional differential G-L definition, three filter templates were constructed to extract thenar palm print edge. The experiment results showed that this algorithm can reduce noise and detect rich edge details and has higher SNR than traditional methods.
"Palm Print Edge Extraction Using Fractional Differential Algorithm." J. Appl. Math. 2014 (SI03) 1 - 7, 2014. https://doi.org/10.1155/2014/896938