ABSTRACT reconstructs a contact-free 3D representation of the fingerprint. Touchless sensing technology provides an ideal soluFingerprints are traditionally captured based on contact of the tion to the intrinsic problems of the contact-based technology finger on paper or a platen surface. This often results in partial as stated above and results in repeatable and high quality imor degraded images due to improper finger placement, skin age acquisition. In addition, the reconstructed 3D fingerprint deformation, slippage and smearing, or sensor noise from wear gives a much larger, nail-to-nail representation of the fingerand tear of surface coatings. A new generation of touchless print, compared to conventional contact-based fingerprints. live scan devices that generate 3D representation of finger-3D touchless fingerprints, however, need to be compatiprints iS appearing in the market. This new sensing technol-ble with the conventional contact-based 2D rolled fingerprint ogy addresses manyeofit probes saed above.iHowevr images used in Automated Fingerprint Identification Systems 3D touchless fingerprint images need to be compatible with (AFIS). In order to make 3D touchless fingerprints interopthe legacy rolled images used in Automated Fingerprint Iden-erable with current AFIS systems, we introduce a simulated tification Systems (AFIS). In orderto solve this interoperabil-rolling procedure which essentially unwraps the 3D touchity issue, we propose an unwrapping algorithm that unfolds less fingerprints into 2D such that the resulting 2D fingerthe 3D fingerprint in such a way that it resembles the effect prints are comparable with legacy rolled fingerprints. This of virtually rolling the 3D finger on a 2D plane Our prelimi-is a very challenging task because the simulated rolling pronary experiments show promising results in obtaining touch-cedure must not introduce distortions other than those comless fingerprint images that are ofhigh quality and at the same patible with the physical deformation of skin due to rolling. time compatible with legacy rolled fingerprint images.
Representation of the data would be preferable on a 2D plane to work with these applications REF .
3D Touchless Fingerprints: Compatibility with Legacy Rolled Images
2006 Biometrics Symposium: Special Session on Research at the Biometric Consortium Conference
2006 Biometrics Symposium: Special Session on Research at the Biometric Consortium Conference
Engineering