Fingerprint biometry applications of digital holography and low-coherence interferography.
We use several holographic and interferographic methods for two- and three-dimensional imaging of fingerprints. Holographic phase microscopy is used to produce images of thin-film patterns left by latent fingerprints. Two or more holographic phase images with different wavelengths are combined for optical phase unwrapping of images of thicker patent prints or a plastic print. Digital interference holography uses scanned wavelengths to synthesize short-coherence interference tomographic images of a plastic print. We also demonstrate light-emitting-diode-based low-coherence interferography for imaging plastic as well as latent prints. These demonstrations point to significant contributions to biometry by the emerging technology of digital holography and interferography.
Potcoava
Mariana C
MC
Department of Physics, University of South Florida, Tampa, Florida 33620, USA. mpotcoav@mail.usf.edu
Kim
Myung K
MK
D000465:Algorithms; D001699:Biometry / Q000379:methods*; D003878:Dermatoglyphics / Q000145:classification*; D006696:Holography / Q000379:methods*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D007368:Interferometry / Q000379:methods*; D012815:Signal Processing, Computer-Assisted