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Blinking characterization from high speed video records. Application to biometric authentication

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  • Julián Espinosa
  • Begoña Domenech
  • Carmen Vázquez
  • Jorge Pérez
  • David Mas

Abstract

The evaluation of eye blinking has been used for the diagnosis of neurological disorders and fatigue. Despite the extensive literature, no objective method has been found to analyze its kinematic and dynamic behavior. A non-contact technique based on the high-speed recording of the light reflected by the eyelid in the blinking process and the off-line processing of the sequence is presented. It allows for objectively determining the start and end of a blink, besides obtaining different physical magnitudes: position, speed, eyelid acceleration as well as the power, work and mechanical impulse developed by the muscles involved in the physiological process. The parameters derived from these magnitudes provide a unique set of features that can be used to biometric authentication. This possibility has been tested with a limited number of subjects with a correct identification rate of up to 99.7%, thus showing the potential application of the method.

Suggested Citation

  • Julián Espinosa & Begoña Domenech & Carmen Vázquez & Jorge Pérez & David Mas, 2018. "Blinking characterization from high speed video records. Application to biometric authentication," PLOS ONE, Public Library of Science, vol. 13(5), pages 1-19, May.
    • Handle: RePEc:plo:pone00:0196125
    DOI: 10.1371/journal.pone.0196125
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