On the spatial inhomogeneity of fingerprint minutiae: A regression approach

Shuiwang Li, Yi WANG, Qijun Zhao, Yi Zhang

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

Abstract

Fingerprint minutiae distribution plays a critical role in studies such as fingerprint individuality for strengthening the scientific validity of fingerprint evidence and generating synthetic fingerprints for large-scale system evaluations. Fingerprint minutiae are not uniformly distributed as once assumed. Spatial inhomogeneity has been found in minutiae distribution, yet it is not clear what underlies the pattern and affects the random process. In this paper, we quantitatively study the spatial inhomogeneity of minutiae distribution with respect to the level-1 features of singular points and ridge orientation field. We propose a minutiae intensity function to measure the spatial inhomogeneity and a kernel regression model to characterize the relationship between minutiae intensity and the level-1 features. Our statistical experiments on benchmark fingerprint databases show that: 1) the examined level-1 features partially explain regular variation of minutiae spatial distribution; 2) there remain significant fraction of variations unexplained, suggesting additional propositions. These results provide better understanding of the experiential probability of a random correspondence for fingerprint minutiae distribution modelling.

Original languageEnglish
Title of host publicationProceedings of 2015 International Conference on Biometrics, ICB 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages379-385
Number of pages7
ISBN (Electronic)9781479978243
DOIs
Publication statusPublished - 29 Jun 2015
Event8th IAPR International Conference on Biometrics, ICB 2015 - Phuket, Thailand
Duration: 19 May 201522 May 2015

Publication series

NameProceedings of 2015 International Conference on Biometrics, ICB 2015

Conference

Conference8th IAPR International Conference on Biometrics, ICB 2015
Country/TerritoryThailand
CityPhuket
Period19/05/1522/05/15

Scopus Subject Areas

  • Biotechnology
  • Computer Science Applications
  • Biomedical Engineering
  • Safety, Risk, Reliability and Quality

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