An Investigation of Optimal Light Source Setups for Photometric Stereo Reconstruction of Historical Coins
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Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
In this paper, we address the 3D reconstruction of historical coins by means of Photometric Stereo. We investigate the influence of the number and arrangement of lights to the reconstruction quality by comparing mean angular errors on 22 historical coin models. Our results demonstrate that 6 lights circularly placed at an optimal elevation angle do not show a significant loss of reconstruction quality compared to a full semispherical dome setup with 54 lights. This represents a considerable saving of acquisition time and system complexity when it comes to the mass digitization of historical coins.
Description
@inproceedings{10.2312:gch.20181362,
booktitle = {Eurographics Workshop on Graphics and Cultural Heritage},
editor = {Sablatnig, Robert and Wimmer, Michael},
title = {{An Investigation of Optimal Light Source Setups for Photometric Stereo Reconstruction of Historical Coins}},
author = {Brenner, Simon and Zambanini, Sebastian and Sablatnig, Robert},
year = {2018},
publisher = {The Eurographics Association},
ISSN = {2312-6124},
ISBN = {978-3-03868-057-4},
DOI = {10.2312/gch.20181362}
}