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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Evolving the face of a criminal: how to search a face space more effectively
Authors: Frowd, Charlie D
Bruce, Vicki
Pitchford, Melanie
Gannon, Carol
Robinson, Mark
Tredoux, Colin
Park, Joanne
McIntyre, Alex H
Hancock, Peter J B
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Keywords: Face generation
Face perception
Genetic Algorithms
Issue Date: Jan-2011
Publisher: Springer
Citation: Frowd CD, Bruce V, Pitchford M, Gannon C, Robinson M, Tredoux C, Park J, McIntyre AH & Hancock PJB (2011) Evolving the face of a criminal: how to search a face space more effectively, Soft Computing, 15 (1), pp. 61-70.
Abstract: Witnesses and victims of serious crime are often required to construct a facial composite, a visual likeness of a suspect’s face. The traditional method is for them to select individual facial features to build a face, but often these images are of poor quality. We have developed a new method whereby witnesses repeatedly select instances from an array of complete faces and a composite is evolved over time by searching a face model built using PCA. While past research suggests that the new approach is superior, performance is far from ideal. In the current research, face models are built which match a witness’s description of a target. It is found that such 'tailored' models promote better quality composites, presumably due to a more effective search, and also that smaller models may be even better. The work has implications for researchers who are using statistical modelling techniques for recognising faces.
Type: Journal Article
DOI Link:
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: University of Central Lancashire
Newcastle University
University of Central Lancashire
University of Central Lancashire
University of Stirling
University of Cape Town

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