MATCHED FILTER DESIGN FOR FINGERPRINT IMAGE ENHANCEMENT.

Lawrence O'Gorman, Jeffrey V. Nickerson

Research output: Contribution to journalConference articlepeer-review

36 Scopus citations

Abstract

A procedure for filter design is described for enhancing fingerprint images. Four steps of this procedure are described here: user specification of appropriate image features, determination of local ridge orientations throughout the image, smoothing of this orientation image, and pixel-by-pixel image enhancement by application of oriented, matched filter masks. The contribution of this work is to quantify and justify the functional relationships between image features and filter parameters so that the design process can be easily modified for different conditions of noise and scale. Application of the filter shows good ridge separation and continuity and background noise reduction.

Original languageEnglish
Pages (from-to)916-919
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
StatePublished - 1988

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