Question? Ask on the CHI Forums

CHI offers a free discussion forums site where you can share your questions, insights, and issues as you work with Reflectance Transformation Imaging (RTI). Join the conversation!

RTI Workflow Materials

» Capture

  • Download the guide and the glossary
  • Watch the how-to video

» Highlight Capture Kit

  • Order the RTI Starter Kit

» Process: RTIBuilder

  • Download the guide and example files
  • Download RTIBuilder

» View: RTIViewer

  • Download the guide and example files
  • Download RTIViewer

RTI Lighting Array

For Automatic Acquisition of Reflectance Transformation Imaging (RTI) and Associated Techniques

Contents:  Why?  Advantages

A lighting array is a combination of hardware designed to light and capture photographic image sequences and software that operates the apparatus and data capture. A lighting array is optional equipment but one that makes capturing and processing the imaging data much more efficient for the user.

Note: At this time, Cultural Heritage Imaging (CHI) is no longer offering a lighting array. We are currently exploring other options for this equipment. If we have helpful information to share, we will update this page.


Operating a CHI Lighting Array

CHI Imaging Director Marlin Lum using a CHI lighting array.

Why a Lighting Array?

CHI has fostered a community of users who use the RTI highlight method to document objects, museum collections, and sites. Anyone with a digital camera and reflective spheres (spheres are included in the RTI Highlight Capture Starter Kit, also offered by CHI) can employ the RTI imaging technique. The simplicity of this model has led to a widespread use of the technology.

Advantages of a Lighting Array