@inproceedings{f293b43909394dd986fb952e32b45be0,
title = "3D Surface Measurement and Analysis of Works of Art",
abstract = "Surface shape metrology encompasses broad topics within cultural heritage science. However, most existing surface shape measurement systems are bulky and restricted to lab environments. As most are not practical for large, delicate or fixed works of art, such as stained-glass windows or oil-painted murals, we develop methods to measure matte and specular surfaces using hand-held mobile devices. In the 'Shape-from-Shifting' method, we use a hand-held cell-phone to capture surface normal maps computed with a near-light variant of photometric stereo from a shifting sequence of flash-lit photos. In the 'Multiview Deflectometry' method, 3D information of specular surfaces is calculated by observing the reflection of a tablet screen on the surface with the tablet's front facing camera. Both methods are fast, portable and easy to use for non-experts. We present case studies for each method: detecting protrusions growing in Georgia O'Keeffe paintings and identifying surface features of Tiffany stained glass.",
keywords = "3D Surface Shape Reconstruction, Cultural Heritage, Deflectometry, Feature Identification, Mobile Devices, Painting, Photometric Stereo, Protrusion Detection, Stained Glass",
author = "Xu, {Bingjie Jenny} and Florian Willomitzer and Yeh, {Chia Kai} and Fengqiang Li and Vikas Gupta and Jack Tumblin and Marc Walton and Oliver Cossairt",
note = "Funding Information: This project was supported by the National Science Foundation (NSF), National Endowment for the Humanities (NEH) and the Andrew W. Mellon Foundation to the Center for Scientific Studies in the Arts. Publisher Copyright: {\textcopyright} 2019 IEEE.; 53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019 ; Conference date: 03-11-2019 Through 06-11-2019",
year = "2019",
month = nov,
doi = "10.1109/IEEECONF44664.2019.9048720",
language = "English (US)",
series = "Conference Record - Asilomar Conference on Signals, Systems and Computers",
publisher = "IEEE Computer Society",
pages = "1779--1782",
editor = "Matthews, {Michael B.}",
booktitle = "Conference Record - 53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019",
address = "United States",
}