Comparative Analysis of the Variability of Facial Landmarks for Forensics Using CCTV Images

  • Ruben Vera-Rodriguez
  • Pedro Tome
  • Julian Fierrez
  • Javier Ortega-Garcia
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8333)

Abstract

This paper reports a study of the variability of facial landmarks in a forensic scenario using images acquired from CCTV images. This type of images presents a very low quality and a large range of variability factors such as differences in pose, expressions, occlusions, etc. Apart from this, the variability of facial landmarks is affected by the precision in which the landmarks are tagged. This process can be done manually or automatically depending on the application (e.g., forensics or automatic face recognition, respectively). This study is carried out comparing both manual and automatic procedures, and also 3 distances between the camera and the subjects. Results show that landmarks located in the outer part of the face (highest end of the head, ears and chin) present a higher level of variability compared to the landmarks located the inner face (eye region, and nose). This study shows that the landmark variability increases with the distance between subject and camera, and also the results of the manual and automatic approaches are similar for the inner facial landmarks.

Keywords

Forensics face recognition video surveillance data analysis 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Ruben Vera-Rodriguez
    • 1
  • Pedro Tome
    • 1
  • Julian Fierrez
    • 1
  • Javier Ortega-Garcia
    • 1
  1. 1.Biometric Recognition Group - ATVS, Escuela Politecnica SuperiorUniversidad Autonoma de MadridMadridSpain

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