Abstract
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.
© 2009 Optical Society of America
Full Article | PDF ArticleMore Like This
Jitendra Dhanotia, Satya Prakash, Vimal Bhatia, and Shashi Prakash
Appl. Opt. 55(20) 5316-5321 (2016)
Christian Remmersmann, Stephan Stürwald, Björn Kemper, Patrik Langehanenberg, and Gert von Bally
Appl. Opt. 48(8) 1463-1472 (2009)
Lluís Martínez-León, Giancarlo Pedrini, and Wolfgang Osten
Appl. Opt. 44(19) 3977-3984 (2005)