A new antispoofing approach for biometric devices

P. Venkata Reddy, Ajay Kumar Pathak, S. M.K. Rahman, Tanvir Singh Mundra

Research output: Journal article publicationJournal articleAcademic researchpeer-review

81 Citations (Scopus)


The deployment of fingerprint sensors is increasingly becoming common and has now gained high user acceptance. However, fingerprint sensors are susceptible to spoofing using artificial materials or in worst case to the dismembered fingers. Fake/gummy fingerprints have shown to fool most commercial fingerprint systems. This paper proposes a new method of anti-spoofing using reliable liveness detection. The proposed method of liveness detection is based on the principle of pulse oximetry and involves the source of light originating from a probe at two wavelengths. The light is partly absorbed by haemoglobin, by amounts which differ depending on whether it is saturated with oxygen or deoxygenated haemoglobin. We then perform the computations for the absorption at two wavelengths to estimate the proportion of haemoglobin which is oxygenated. The computed percentage of oxygen in the blood, along with the heart pulse rate, determines the liveness of the enrolled biometric. Our experimental results demonstrate that the developed prototype can successfully thwart the spoof attacks (including those based on dismembered fingers).
Original languageEnglish
Pages (from-to)328-337
Number of pages10
JournalIEEE Transactions on Biomedical Circuits and Systems
Issue number4
Publication statusPublished - 8 Dec 2008
Externally publishedYes


  • Antispoofing
  • Biometrics
  • Fingerprint antispoofing
  • Liveness detection
  • Pulse oximetry

ASJC Scopus subject areas

  • Biomedical Engineering
  • Electrical and Electronic Engineering

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