[[alternative]]Fingerprint Verification System using Phase Correlation Technique

[[abstract]]Abstract The technique of digital fingerprint matching has been used for more than thirty years. Two main traditional approaches to do fingerprint matching are minutiae-based matching and filter-based matching. They were proposed to extract the features of ridges and valleys pattern and verify the incoming fingerprint with stored fingerprint database fast and accurately. But the widely used minutiae-based matching has difficulty in quickly matching two fingerprint images containing different number of unregistered minutiae points. And the filter-based matching suffered much in false acceptance rate when dealt with defective fingerprints. The proposed phase-based matching algorithm uses phase difference to do fingerprint verification instead of traditional Euclidean distance. The amplitude value is normalized into unitary value. This robust phase-matching algorithm speeds up the fingerprint matching and reduces false acceptance rate after several experiments.