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A Method Based on the Markov Chain Monte Carlo for Fingerprint Image Segmentation

  • Xiaosi Zhan
  • Zhaocai Sun
  • Yilong Yin
  • Yun Chen
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3614)

Abstract

As one key step of the automatic fingerprint identification system (AFIS), fingerprint image segmentation can decrease the affection of the noises in the background region and handing time of the subsequence algorithms and improve the performance of the AFIS. Markov Chain Monte Carlo (MCMC) method has been applied to medicine image segmentation for decade years. This paper introduces the MCMC method into fingerprint image segmentation and brings forward the fingerprint image segmentation algorithm based on MCMC. Firstly, it generates a random sequence of closed curves as Markov Chain, which is regarded as the boundary between the fingerprint image region and the background image region and uses the boundary curve probability density function (BCPDF) as the index of convergence. Then, it is simulated by Monte Carlo method with BCPDF as parameter, which is converged to the maximum. Lastly, the closed curve whose BCPDF value is maximal is regarded as the ideal boundary curve. The experimental results indicate that the method is robust to the low-quality finger images.

Keywords

Markov Chain Monte Carlo Gray Level Boundary Curve Closed Curve Image Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Xiaosi Zhan
    • 1
  • Zhaocai Sun
    • 2
  • Yilong Yin
    • 2
  • Yun Chen
    • 1
  1. 1.Computer DepartmentFuyang Normal CollegeFuyangP.R. China
  2. 2.School of Computer Science & TechnologyShandong UniversityJinanP.R. China

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