Amazon head imaged using the HP Labs polynomial texture mapping technique

Left click and move the mouse over the image to change the apparent light position. Right click to choose visualisation options.

The image above is a Polynomial Texture Map or PTM. This approach was developed by HP Labs. In particular we are very grateful for the advice provided by Tom Malzbender.

Access to the statue and archaeological expertise was provided by Soprintendenza Speciale per i Beni Archeologici di Napoli e Pompei, assisted by members of the Packard Humanities Institute Herculaneum Conservation Project.

The PTM was captured by Hembo Pagi (ACRG) using a photographic rig developed by the Archaeological Computing Research Group and the School of Electronics and Computer Science at the University of Southampton. The electronics and software to drive the rig and subsequent image processing was developed by members of the Intelligence, Agents, Multimedia Group at the University of Southampton, and in particular Kirk Martinez. The rig was engineered by Eric Webb. Capture of data was via a Nikon D300 using our own software and Camera Control Pro 2.

The applet is based on an applet available at The additional programing was carried out by David Potts (ACRG).