The problem of fingerprint scaling has received limited attention in the literature. Fingerprint scaling is an important issue for fingerprint sensor interoperability. However, no systematic study has been conducted to ascertain its effect on fingerprint systems. In this paper, a fingerprint scaling scheme using the average inter-ridge distance is presented. At first, the average inter-ridge distances of two fingerprint images acquired with two different fingerprint sensors are estimated respectively. Then the images are zoomed according to scale of the two average inter-ridge distances. Experiments have shown that the proposed fingerprint scaling method has good performance.


Fingerprint scaling sensor interoperability inter-ridge distance 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Chun-Xiao Ren
    • 1
  • Yi-Long Yin
    • 1
  • Jun Ma
    • 1
  • Hao Li
    • 1
  1. 1.School of Computer Science and TechnologyShandong UniversityJinanChina

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