Towards Sparse and Multiplexed Acquisition of Material BTFs

Brok, Dennis den; Weinmann, Michael; Klein, Reinhard

Towards Sparse and Multiplexed Acquisition of Material BTFs

Files

017-020.pdf (2.22 MB)

Date

2017

Authors

Brok, Dennis den
Weinmann, Michael
Klein, Reinhard

Publisher

The Eurographics Association

Abstract

We present preliminary results on our effort to combine sparse and illumination-multiplexed acquisition of bidirectional texture functions (BTFs) for material appearance. Both existing acquisition paradigms deal with a single specific problem: the desire to reduce either the number of images to be obtained while maintaining artifact-free renderings, or the shutter times required to capture the full dynamic range of a material's appearance. These problems have so far been solved by means of data-driven models. We demonstrate that the way these models are derived prevents combined sparse and multiplexed acquisition, and introduce a novel model that circumvents this obstruction. As a result, we achieve acquisition times on the order of minutes in comparison to the few hours required with sparse acquisition or multiplexed illumination.

        @inproceedings{10.2312:mam.20171326
,
booktitle = {Workshop on Material Appearance Modeling
},
editor = {Reinhard Klein and Holly Rushmeier
},
title = {{Towards Sparse and Multiplexed Acquisition of Material BTFs
}},
author = {Brok, Dennis den 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.20171326
}
}