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Proceedings Paper

Thinned fingerprint image postprocessing using ridge tracing
Author(s): Wenxing Liu; Zhaoqi Wang; Guoguang Mu
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Paper Abstract

Fingerprints are usually compared based on the matching of such features as ridge bifurcations and endings. However, when features are extracted from a thinned fingerprint, pseudo-features are usually introduced as well. In this paper, we propose an approach in which points on a fingerprint ridge can be traced and recorded in a chained list with a 3 X 3 window. based on the proposed approach, an algorithm to remove pseudo-features from a thinned fingerprint image is developed. The algorithm is carried into execution using a library of thinned fingerprint images with such pseudo-structures as spurs, bridges and circles, and it is found that the pseudo-features can be correctly and totally removed with high efficiency.

Paper Details

Date Published: 20 September 2001
PDF: 6 pages
Proc. SPIE 4552, Image Matching and Analysis, (20 September 2001); doi: 10.1117/12.441521
Show Author Affiliations
Wenxing Liu, Nankai Univ. (China)
Zhaoqi Wang, Nankai Univ. (China)
Guoguang Mu, Nankai Univ. (China)


Published in SPIE Proceedings Vol. 4552:
Image Matching and Analysis

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