Reference Work Entry

Encyclopedia of Biometrics

pp 1287-1297


Quality Measures in Biometric Systems

  • Fernando Alonso-FernandezAffiliated withIntelligent Systems Lab (IS-Lab/CAISR), Halmstad University
  • , Julian FierrezAffiliated withUniversidad Autonoma de Madrid
  • , Josef BigunAffiliated withEmbedded Intelligent Systems Center, Halmstad University, IDE


Quality assessment; Biometric quality; Quality-based processing


Since the establishment of biometrics as a specific research area in the late 1990s, the biometric community has focused its efforts in the development of accurate recognition algorithms [1]. Nowadays, biometric recognition is a mature technology that is used in many applications, offering greater security and convenience than traditional methods of personal recognition [2].

During the past few years, biometric quality measurement has become an important concern after a number of studies and technology benchmarks that demonstrate how performance of biometric systems is heavily affected by the quality of biometric signals [3]. This operationally important step has been nevertheless under-researched compared to the primary feature extraction and pattern recognition tasks [4]. One of the main challenges facing biometric technologies is performance degradation in less controlled situations, and the problem of b ...

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