Biometric facial recognition: the recognition of suspects through the comparison between custody pictures and CCTV footage

Puccini, Giulia (2016) Biometric facial recognition: the recognition of suspects through the comparison between custody pictures and CCTV footage. MSc dissertation, University of Portsmouth.

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    The purpose of this dissertation is dual: firstly, to establish the current limitations of the facial recognition techniques currently employed in the investigative field and secondly, to suggest a range of strategies and new technologies able to overcome those limitations.
    The research is based on the utilisation of a mixed method. The aim of the primary research is to explore the face recognition practices currently in place and to establish the main limitations that affect the performance and therefore the probative value of such techniques.
    The purpose has been achieved through field observation at the Hampshire Constabulary Forensic Imaging Department. Additionally, the researcher has carried out semi-structured interviews with two expert practitioners operating in the afore-mentioned department: a Still Imaging Technician and a CCTV Imaging Technician. Secondary research has been carried out at a preliminary stage in order to build a general knowledge of the theoretical aspects surrounding the utilization of biometrics technology in the investigation field. Additionally, the existent literature has provided a range of new technologies that have been suggested as a method of implementation by the researcher.
    The findings of the research have shown the presence of three sets of constraints that adversely affect the reliability of face recognition technology (Instrinsic factors, Extrinsic factors and Human factor). The final discussion will integrate the analysis of this set of constraints with the application of the new technology currently available.
    The conclusion highlights how the findings are encouraging overall. Despite the presence of important constraints, it is undeniable that several modes of intervention appear to be possible and applicable in the near future

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Humanities and Social Sciences > Institute of Criminal Justice Studies
    Depositing User: Jane Polwin
    Date Deposited: 21 Mar 2017 14:27
    Last Modified: 21 Mar 2017 14:27

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