Journal Published Online: 01 July 1994
Volume 39, Issue 4

Operational Experience of Fingermark Enhancement by Frequency Domain Filtering

CODEN: JFSCAS

Abstract

Fourier transformation of an image and subsequent filtering in the frequency domain has been found to be an effective way to improve images of fingermarks on interfering backgrounds. Examples are given of success in reducing periodic backgrounds that would otherwise have prevented fingermark identification. In addition, it has been found that better background suppression is obtained when high-resolution images are used.

Author Information

Bramble, SK
Research and Development Section, Metropolitan Police Forensic Science Laboratory, London, England
Jackson, GR
Research and Development Section, Metropolitan Police Forensic Science Laboratory, London, England
Pages: 13
Price: $25.00
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Stock #: JFS13674J
ISSN: 0022-1198
DOI: 10.1520/JFS13674J