Enhancement Of Fluorescent Fingerprints By Time-Resolved Imaging

E. R. Menzel; M. Pleil; S. Gangopadhyay; W. Borst

doi:10.1117/12.966949

1 January 1987 Enhancement Of Fluorescent Fingerprints By Time-Resolved Imaging

E. R. Menzel, M. Pleil, S. Gangopadhyay, W. Borst

Proceedings Volume 0743, Fluorescence Detection; (1987) https://doi.org/10.1117/12.966949
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

Laser detection of latent fingerprints tends to fail when prints are located on certain types of surface, such as brown cardboard and wood, because the generally weak fingerprint fluorescence is overwhelmed by background luminescence from these substrates. The fingerprint and background fluorescence lifetimes, which are of nanosecond order, were measured for samples of the above surface types and for fingerprints treated by the most successful current detection procedures. Our results indicate that time-resolved imaging can in these situations improve image contrast by about an order of magnitude.

Citation Download Citation

E. R. Menzel, M. Pleil, S. Gangopadhyay, and W. Borst "Enhancement Of Fluorescent Fingerprints By Time-Resolved Imaging", Proc. SPIE 0743, Fluorescence Detection, (1 January 1987); https://doi.org/10.1117/12.966949

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