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Composite Filter for VanderLugt Correlator



Craig I. Watson, Charles L. Wilson, E G. Paek, Patrick J. Grother


This paper will examines the use of composite filters for improving the effectiveness of a Vanderlugt correlator when used for fingerprint identification. A digital simulation, which accounts for noise sources in the optical setup, is used to design and test composite matched spatial filters. Results are presented for a real time video image database containing 10 seconds of video from 200 fingers. Using the composite matched spatial filter, the Vanderlugt correlator is getting 70% correct indentifications with no false positives.
- 6291
Report Number


composite matched spatial filter, fingerprint, optical correlation, spatial light modulation, VanderLugt correlator


Watson, C. , Wilson, C. , Paek, E. and Grother, P. (1999), Composite Filter for VanderLugt Correlator, - 6291, National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed April 16, 2024)
Created February 4, 1999, Updated February 19, 2017