DEMONSTRATIONS

3-Axis Goniometer
A short video clip of our 3-axis goniometer in motion. (Added April 29, 2008)

The Principle of Spectral Imaging
An imaging spectrophotometer can be made by combining a monochrome (grayscale) digital camera with a liquid-crystal tunable filter. (Added March 3, 2003)

Spectral Imaging Compared with Traditional Spectrophotmetry
See the accuracy of spectral imaging compared with direct measurements with a spectrophotometer. (Added March 12, 2003)

Estimating the spectral reflectance of the GretagMacbeth ColorChecker Color Rendition Chart
See the accuracy of spectral imaging compared with direct measurements with a spectrophotometer using either a liquid-crystal tunable filter and a monochrome (grayscale) digital camera or a color-filter-array digital camera and two colored absorption filters. (Added January 30, 2005)

Color Accuracy of GretagMacbeth ColorChecker Color Rendition Chart: Four Museums Compared with the RIT Two-Filter Method
See the accuracy of four cultural-heritage institutions as well as the RIT two-filter spectral imaging approach compared with direct measurements with a spectrophotometer. (Added February 8, 2005)