Fingerprint Compression by Ridgelet Transform

In the present paper, a concept of compression using block ridgelet transform is introduced. This kind of analysis/synthesis fingerprint representation takes the form of basis elements which exhibit very high directional sensitivity and are highly anisotropic. This transform tailored for fingerprint, associated to a quantized global orientation flow provides a suit representation of the oriented ridges structure. The design and implementation of ridgelet compression scheme are discussed. In order to evaluate the performance of the algorithm, FCV2002, FCV2004 and NIST fingerprint databases have been considered. The results show that this method has a serious potential in fingerprint compression.