University of Exeter

Matthew Mcguigan

Jacqueline Christmas

A latent print extraction apparatus is described. An input receives an image of light reflected from a curved surface. A comparison unit compares a shape of the reflected light in the image to an expected shape of light reflected from a flat surface and thereby determines an estimated curvature for the curved surface. A correction unit corrects curvature distortions of an image of a latent print on the curved surface based on the estimated curvature. The latent print extraction apparatus allows the calculation of a value for the curvature of the curved surface to be done remotely, without the need to physically measure the surface. This saves time and avoids accidentally or otherwise contacting any latent prints when measuring the curvature of the surface.

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Exeter, United Kingdom

Matthew Mcguigan