The Public Portal to RTI_help Group Projects

This is the web portal to the collaboratively developed documents of the support group RTI_help, which was formed to encourage the use of Reflectance Transformation Imaging (RTI) and Polynomial Texture Mapping (PTM) as versatile, rigorous and inexpensive methods of performing advanced study and documention of cultural materials. The purpose of this peer-to-peer group is to create as wide an exploratory group as possible in the belief that more communication yields faster development. This group is not meant to be a primary source of advanced technical information. For that we recommend the non-profit organization Cultural Heritage Imaging.

All current or potential RTI/PTM users are invited to join. If you know someone who may want to join send them this link: RTI_help group

As projects evolve we will add them to this page. Currently you can click on the links to your left to access a bibliography and glossary on RTI each of which is under development by the RTI help group members.

Dennis Piechota and Kathryn E. Piquette

RTI_help Group Administrators

Contact: rtis.r.us@gmail.com