Abstract

In this paper, a rotation invariant fingerprint identification system is implemented by using the circular harmonic filter and the binary phase extraction joint transform correlator. We present that this system has the shift and rotation invariant properties and can recognize the fingerprint in real-time. The complex circular harmonic filter which is used to obtain the rotation invariance, is converted into the real-valued filter for real-time implementation. Through computer simulation, we also show that this system has a good performance in the rotated fingerprints.

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