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Proceedings Paper

Dynamic threshold using polynomial surface regression with application to the binarization of fingerprints
Author(s): Krzysztof Mieloch; Preda Mihailescu; Axel Munk
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Paper Abstract

Dynamic thresholds are a popular and effective means of binarisation, used in image processing. We show that the method is a special case of a general setting in which input data from a background window are fitted with a polynomial surface after which the data from a smaller, embedded focus window are thresholded with respect to the fitted surface. The method has been implemented and used with good results in the context of fingerprint recognition.

Paper Details

Date Published: 28 March 2005
PDF: 11 pages
Proc. SPIE 5779, Biometric Technology for Human Identification II, (28 March 2005); doi: 10.1117/12.603377
Show Author Affiliations
Krzysztof Mieloch, Univ. of Gottingen (Germany)
Preda Mihailescu, Univ. of Paderborn (Germany)
Axel Munk, Univ. of Gottingen (Germany)

Published in SPIE Proceedings Vol. 5779:
Biometric Technology for Human Identification II
Anil K. Jain; Nalini K. Ratha, Editor(s)

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