TY - GEN
T1 - Semi-automatic digital epigraphy from images with normals
AU - Berkiten, Sema
AU - Fan, Xinyi
AU - Rusinkiewicz, Szymon
N1 - Publisher Copyright:
© The Eurographics Association 2015.
PY - 2015/6/20
Y1 - 2015/6/20
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84984982197&partnerID=8YFLogxK
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U2 - 10.2312/exp.20151182
DO - 10.2312/exp.20151182
M3 - Conference contribution
AN - SCOPUS:84984982197
T3 - Expressive 2015: Joint Symposium of Computational Aesthetics, CAe, Non-Photorealistic Animation and Rendering, NPAR, Sketch-Based Interfaces and Modeling, SBIM
SP - 91
EP - 102
BT - Expressive 2015
A2 - Fellner, Dieter W.
PB - Association for Computing Machinery, Inc
T2 - Workshop on Non-Photorealistic Animation and Rendering, NPAR 2015
Y2 - 20 June 2015 through 22 June 2015
ER -