Automatic forensic face recognition from digital images

Bayesian analysis of fingerprint, face and signature evidences with automatic biometric systems

“…The automatic analysis of face evidence in court [30] is not as usual as other characteristics as fingerprint, but the underlying principles shown here for an automatic face recognition system could be used for other face recognition systems, so there are a lack of face databases under forensic conditions. However, as biometric systems are becoming more and more available, we could think in possible crimes committed after a false acceptance of a non-user (impostor) accessing to a restricted area through a face-verification based access control system.…”

Biometric score calibration for forensic face recognition

“…However, this issue can be addressed by appending a post-processing module with exisitng face recognition systems developed for other applications such as access-control [23,24]. This only partly address the overall goal of an automatic forensic face recognition system.…”

“…Automatic forensic face recognition from digital images is addressed in [24]. This paper describes small scale experimental work carried out by the Forensic Science Service in the UK, exploring the performance of an existing automatic face recognition system [44] in the forensic domain.…”

“…To compare two faces, the similarity of the two face templates is determined. In [24] the similarity is expressed in a percentage (0-100%) and is called recognition probability. Given a database of n facial images, then a query image results in n recognition probabilities.…”

“…It is applied to several biometric modalities including forensic-DNA comparison [5] and forensic voice comparison [7,53]. Preliminary results of evidence evaluation using this framework in the context of face recognition systems are presented in [23,54]. In this framework the responsibility of a forensic scientist is to compute the LR.…”