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Fingerprint Recognition
Andrew Ackerman Professor Rafail Ostrovsky Abstract Fingerprint matching is the process used to determine whether two sets of fingerprint ridge detail come from the same finger. There exist multiple algorithms that do fingerprint matching in many different ways. Some methods involve matching minutiae points between the two images, while others look for similarities in the bigger structure of the fingerprint. In this project we propose a method for fingerprint matching based on minutiae matching. However, unlike conventional minutiae matching algorithms our algorithm also takes into account region and line structures that exist between minutiae pairs. This allows for more structural information of the fingerprint to be accounted for thus resulting in stronger certainty of matching minutiae. Also, since most of the region analysis is preprocessed it does not make the algorithm slower. The algorithm for matching was not created; however, the process in which the regional data is obtained is explained in this paper. Evidence from the testing of the preprocessed images gives stronger assurance that using such data could lead to faster and stronger matches. Introduction Extensive research has been done on fingerprints in humans. Two of the fundamentally important conclusions that have risen from research are: (1) a person's fingerprint will not naturally change structure after about one year after birth and (2) the fingerprints of individuals are unique. Even the fingerprints in twins are not the same. In practice two humans with the same fingerprint have never been found. The Basics A fingerprint is comprised of ridges and valleys. The ridges are the dark area of the fingerprint and the valleys are the white area that exists between the ridges. Many classifications are given to patterns that can arise in the ridges and some examples are given in the figure to the right. These points are also known as the minutiae of the fingerprint. The most...

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