Description

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This is a summary of a multi-year study of the use of distortion-invariant filters for recognition of live-scan dab fingerprints with elastic distortions. These fingerprints are characterized by elastic distortions. NIST special database 24 is used; it represents the only available database containing a number of elastic distortions for each fingerprint. Several different distortion-invariant filters were addressed including two new ones that used high-pass filtered fingerprint data to improve discrimination. Verification and identification applications are addressed and test procedures for evaluating algorithms/systems for each are defined.