Semi-Automatic Digital Epigraphy from Images with Normals

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Date
2015
Authors
Berkiten, Sema
Fan, Xinyi
Rusinkiewicz, Szymon
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
We present a semi-automated system for converting photometric datasets (RGB images with normals) into geometry-aware non-photorealistic illustrations that obey the common conventions of epigraphy (black-and-white archaeological drawings of inscriptions). We focus on rock inscriptions formed by carving into or pecking out the rock surface: these are characteristically rough with shallow relief, making the problem very challenging for previous line drawing methods. Our system allows the user to easily outline the inscriptions on the rock surface, then segment out the inscriptions and create line drawings and shaded renderings in a variety of styles. We explore both constant-width and tilt-indicating lines, as well as locally shape-revealing shading. Our system produces more understandable illustrations than previous NPR techniques, successfully converting epigraphy from a manual and painstaking process into a user-guided semi-automatic process.
Description

        
@inproceedings{
10.2312:exp.20151182
,
booktitle = {
Non-Photorealistic Animation and Rendering
},
editor = {
David Mould and Pierre Bénard
},
title = {{
Semi-Automatic Digital Epigraphy from Images with Normals
}},
author = {
Berkiten, Sema
 and 
Fan, Xinyi
 and 
Rusinkiewicz, Szymon
},
year = {
2015
},
publisher = {
The Eurographics Association
},
ISBN = {},
DOI = {
10.2312/exp.20151182
}
}
Citation
URI
https://doi.org/10.2312/exp.20151182
Collections
NPAR15