A hybrid fingerprint enhancement algorithm

Li Min Liu*, Tian-Shyr Dai

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Fingerprint image enhancement is a common and critical step in fingerprint recognition systems. To enhance the images, most of the existing enhancement algorithms use filtering techniques that can be categorized into isotropic and anisotropic according to the filter kernel. Isotropic filtering can properly preserve features on the input images but can hardly improve the quality of the images. On the other hand, anisotropic filtering can effectively remove noises from the image but only when a reliable orientation is provided. In this paper, we propose an orientation estimation and verification algorithm which can not only generate an orientation of ridge flows, but also verify its reliability. Based on this algorithm, a hybrid fingerprint enhancement algorithm is developed which applies isotropic filtering on regions without reliable orientations and anisotropic filtering on regions with reliable orientations. Experimental results show the proposed algorithm can combine advantages of both isotropic and anisotropic filtering techniques and generally improve the quality of fingerprint images.

Original languageEnglish
Title of host publicationProceedings of the 2006 International Conference on Image Processing, Computer Vision, and Pattern Recognition, IPCV'06
Pages35-40
Number of pages6
StatePublished - 1 Dec 2006
Event2006 International Conference on Image Processing, Computer Vision, and Pattern Recognition, IPCV'06 - Las Vegas, NV, United States
Duration: 26 Jun 200629 Jun 2006

Publication series

NameProceedings of the 2006 International Conference on Image Processing, Computer Vision, and Pattern Recognition, IPCV'06
Volume1

Conference

Conference2006 International Conference on Image Processing, Computer Vision, and Pattern Recognition, IPCV'06
CountryUnited States
CityLas Vegas, NV
Period26/06/0629/06/06

Keywords

  • Enhancement
  • Fingerprint
  • Gabor filter
  • Orientation estimation

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  • Cite this

    Liu, L. M., & Dai, T-S. (2006). A hybrid fingerprint enhancement algorithm. In Proceedings of the 2006 International Conference on Image Processing, Computer Vision, and Pattern Recognition, IPCV'06 (pp. 35-40). (Proceedings of the 2006 International Conference on Image Processing, Computer Vision, and Pattern Recognition, IPCV'06; Vol. 1).