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Correlation Filters for Elastic-Distorted Live-Scan Fingerprint Recognition



D P. Casasent, Craig I. Watson


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.
NIST Interagency/Internal Report (NISTIR) - 6990
Report Number


biometric recognition, distortion-invariant filters, elastic distortions, fingerprint recognition


Casasent, D. and Watson, C. (2006), Correlation Filters for Elastic-Distorted Live-Scan Fingerprint Recognition, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed July 21, 2024)


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Created August 14, 2006, Updated October 12, 2021