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Proceedings Paper

A fingerprint inpainting technique using improved partial differential equation methods
Author(s): Xiukun Yang; Dan Wang; Zhigang Yang
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Paper Abstract

In an automatic fingerprint identification system (AFIS), fingerprint inpainting is a critical step in the preprocessing procedures. Because partially fouled, breaking or scratched latent fingerprint is difficult to be correctly matched to a known fingerprint. However, fingerprint restoration proved to be a particularly challenging problem because conventional image restoration schemes can not be directly applied to fingerprint due to the unique ridge and valley structures in typical fingerprint images. Based on partial differential equations algorithm, this paper presents a fingerprint restoration algorithm composing gradient and orientation field. According to gradient and orientation field of the known pixel points, different weights are used in different orientation field in the restoration process. Experimental results demonstrate that the proposed restoration algorithm can effectively reduce the false feature points.

Paper Details

Date Published: 1 October 2011
PDF: 9 pages
Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 828571 (1 October 2011); doi: 10.1117/12.913509
Show Author Affiliations
Xiukun Yang, Harbin Engineering Univ. (China)
Dan Wang, Harbin Engineering Univ. (China)
Zhigang Yang, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 8285:
International Conference on Graphic and Image Processing (ICGIP 2011)
Yi Xie; Yanjun Zheng, Editor(s)

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