Volume 39, Issue 4 (July 1994)

    Operational Experience of Fingermark Enhancement by Frequency Domain Filtering

    (Received 25 October 1993; accepted 4 January 1994)

    CODEN: JFSOAD

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    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:

    Jackson, GR
    Research Scientist and Forensic Photographer, Research and Development Section, Metropolitan Police Forensic Science Laboratory, London,

    Bramble, SK
    Research Scientist and Forensic Photographer, Research and Development Section, Metropolitan Police Forensic Science Laboratory, London,


    Stock #: JFS13674J

    ISSN: 0022-1198

    DOI: 10.1520/JFS13674J

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    Author
    Title Operational Experience of Fingermark Enhancement by Frequency Domain Filtering
    Symposium , 0000-00-00
    Committee E30