Tuesday 16 October 2012, 6.30PM
Speaker: Dr Charlie Frowd, Senior Lecturer, School of Psychology, University of Central Lancashire
Witnesses to and victims of crime carry out a number of tasks to help bring a criminal to justice. They may describe the criminal's appearance, attempt to pick out the person from an identity parade (line-up) or build a visual likeness of the face. The focus of this talk will be on the last of these tasks, the construction of a facial composite (eg E-FIT or Photofit). The presentation will describe the traditional techniques used to construct a face ? by selection of hair, eyes, nose, mouth and so forth ? along with research which suggests that this approach is not effective at identifying the person in question. It will then outline some of the innovative techniques that have been developed and tested in the laboratory to improve composite quality, some of which are now in police use. These techniques include a new interview for witness and victims, an animated procedure for presenting composite to the public (on BBC CrimeWatch for example) and a new system called EvoFIT that allows a composite to be 'evolved' by the repeated selection and breeding of faces. The research suggests that it is now possible for a witness or a victim to produce an identifiable image of a criminal?s face.
Charlie Frowd has degrees in electronic engineering, psychology and linguistics, and neural computation from the Universities of Middlesex, Bangor and Stirling. His primary research area involves improving the quality of facial composites. These are pictures of suspects to crime, which are often seen in the newspapers and on TV crime programmes, and are used mainly by the police to identify criminals.? With colleagues at the University of Stirling he has been developing a new facial composite system called EvoFIT, which is based on a holistic face coding scheme and an evolutionary interface. In recent experiments, EvoFIT has outperformed other current composite systems (in the most recent realistic study, EvoFIT reached a level of naming roughly twenty times that of a traditional 'feature' type of composite system). Dr Frowd is a member of several prominent learned societies, and is a Chartered Psychologist, Chartered Scientist and Associate Fellow of the British Psychological Society.
Other lectures in this series:
Location: Room P/L001, Physics
Admission: Admission is free and open to all. No ticket required.
Email: publiclectures@york.ac.uk
Source: http://www.york.ac.uk/news-and-events/events/public-lectures/autumn2012/facial-composites/
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