Face Based Recognition Algorithms: A First Step Toward a Metrological Characterization

Face-based recognition systems have been increasingly used in many different applications in today´s society, starting from surveillance and access control to the authentication for banking activities. Therefore, in the last few years an increasing interest in the performance characterization and improvement of such systems can be found in the scientific community. Most of the methodologies for testing the performance of such systems are based on the evaluation of recognition reliability indexes that are generally related to the probability of a false positive and/or of a false negative.