Polynomial Texture Mapping

The resulting series of images is used to produce a single PTM file via the HP Labs PTM fitter software. The PTM viewer enables a virtual light source to be moved across the virtual scene. The viewer can also vary lighting intensity, add additional virtual lights, derive surface models and to carry out image processing tasks such as edge detection.

The ACRG PTM capture rig enables very fast acquisition of PTM data, with variable sample sizes. It has being developed through a collaborative venture involving Archaeology and Electronics and Computer Science at the University of Southampton. Our rig design builds on published designs – Malzbender et al 2001, Hawkins et al 2001 and Mudge et al 2005.