Available Technologies

Browse Penn-owned technologies available for licensing.

HOME SEARCH RSS FEED

Non-contact Fingerprint Scanner

Description:

Latent fingerprint detection using non-destructive imaging

 

Inventor

Nader Engheta  

  

Problem

Latent fingerprints, the marks left by contact with a surface, have been used by forensic science since the 19th century. Often the fingerprints left on objects of interest are hard to detect with the unaided eye, and they may be only partial prints or of low quality. The current technique for extracting fingerprints involves applying a powder and removing the fingerprint with tape, this method, however, is destructive of the original fingerprint and may not work well on all surfaces.

 

Solution

Researchers at the University of Pennsylvania have developed a non-destructive imaging technique that can provide high-quality images of fingerprints suitable for forensic analysis without disturbing the original evidence. Light reflected from a surface is usually polarized at an angle, and this information can be used to perform analysis of surface discontinuities, such as the residue left by a fingerprint. Polarization imaging can help detect fingerprints that would not normally be visible, and do so with a high image quality. Because this technique is non-destructive and non-contact, important forensic evidence can be preserved for future analysis.

 

 

Advantages

Non-contact, non-destructive technique

No harsh solvents or toxic powders required

Preserves evidence for additional analysis

 

  

Stage of Development

Prototype

 

Intellectual Property

US Patent 7,489,391

 

Reference Media

Lin et al. (2006). Polarization-based and specular-reflection-based noncontact latent fingerprint imaging and lifting. Journal of the Optical Society of America, 23(9) https://www.osapublishing.org/josaa/abstract.cfm?uri=josaa-23-9-2137

Desired Partnership

License

 

Download PDF

Docket #: Q3544 


Patent Information:
Category(s):
Imaging
For Information, Contact:
Pamela Beatrice
Director, SEAS/SAS Licensing Group
University of Pennsylvania
215-573-4513
beatricp@upenn.edu
Inventors:
Nader Engheta
Keywords: