Analysis of the Impact of Ear Alignment on Unconstrained Ear Recognition

  • Elaine Grenot-CastellanoEmail author
  • Yoanna Martínez-Díaz
  • Francisco José Silva-Mata
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11896)


The use of the ear in biometric recognition has been widely covered in controlled environments. However, the advantages of the ear as a biometric characteristic impose the need to know how it behaves in unconstrained scenarios, where it is common the presence of occlusions, pose variations, illumination changes and different resolutions. According to this challenge and considering the experience in other biometric recognition processes, the alignment has shown to be a key step. In this work, we carry out an exhaustive and detailed study of the impact of the alignment on the performance of several state-of-the-art ear descriptors, when the images are captured in uncontrolled conditions. Our analysis is based on identification experiments against different types of variations in ears image of the challenging UERC dataset. The obtained results corroborate the hypothesis of the alignment also improves the efficacy of the ear recognition process and show how this improvement behaves for various factors such as head rotation, occlusions, flipping and resolution.


Ear alignment Unconstrained ear recognition Covariates 


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Elaine Grenot-Castellano
    • 1
    Email author
  • Yoanna Martínez-Díaz
    • 1
  • Francisco José Silva-Mata
    • 1
  1. 1.Advanced Technologies Application CenterHavanaCuba

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