A framework for recognizing a facial image from a police sketch

Abstract

We present a theory and practical computations for automatically matching a police artist sketch to a set of true photographs. We locate facial features in both the sketch as well as the set of photograph images. Then, the sketch is photometrically standardized to facilitate comparison with a photo and then both the sketch and the photos are geometrically standardized. Finally, for matching, eigenanalysis is employed. Results using real police sketches and arrest photos are presented.