High-Quality Multi-Spectral Reflectance Acquisition with X-Rite TAC7

Merzbach, Sebastian; Weinmann, Michael; Klein, Reinhard

High-Quality Multi-Spectral Reflectance Acquisition with X-Rite TAC7

Files

011-016.pdf (17.97 MB)

Date

2017

Authors

Merzbach, Sebastian
Weinmann, Michael
Klein, Reinhard

Publisher

The Eurographics Association

Abstract

When relighting digitized objects, strong color deviations can arise depending on the illumination conditions if the object’s reflectance is only captured in RGB. To guarantee color-correct simulations, it is therefore of great importance to perform appearance capture with a finer spectral sampling than the three broad band RGB channels. Capturing both shape and multispectral reflectance at a high quality is a challenging task and - to the best of our knowledge - has not yet been performed at the quality and speed of our approach. We acquire surface geometry and multi-spectral spatially varying reflectance of objects of up to a few centimeters height with the TAC7 device, which is available commercially as of lately. We demonstrate the improvements in color-accuracy and the overall quality of the appearance capture by relighting our accurately digitized objects under varying illumination conditions.

        @inproceedings{10.2312:mam.20171325
,
booktitle = {Workshop on Material Appearance Modeling
},
editor = {Reinhard Klein and Holly Rushmeier
},
title = {{High-Quality Multi-Spectral Reflectance Acquisition with X-Rite TAC7
}},
author = {Merzbach, Sebastian and 
Weinmann, Michael and 
Klein, Reinhard
},
year = {2017
},
publisher = {The Eurographics Association
},
ISSN = {2309-5059
},
ISBN = {978-3-03868-035-2
},
DOI = {10.2312/mam.20171325
}
}