The Application of Reflectance Transformation Imaging (RTI) in Historical Archaeology

Abstract

Reflectance Transformation Imaging (RTI) is a technique for the production of images in the lab or field that allows for the recording and analysis of artifacts so that their surfaces can be investigated more fully than with traditional visual inspection or photography. Using standard photographic equipment and freely available software, images can be generated for recording, analysis, publication, public interpretation, and conservation purposes. This report results from innovative trials of the technique and reveals its potential for widespread application within historical archaeology for investigating many artifact categories including clay pipes, molded glass, gravestones, and bone and copper alloy artifacts.