Visualization and Extraction of Carvings for Heritage Conservation

Visualization and Extraction of Carvings for Heritage Conservation

Lawonn, K.R.H. (University of Koblenz)
Trostmann, Erik (Fraunhofer Institute for Factory Operation and Automation)
Preim, Bernhard (Otto von Guericke University Magdeburg)
Hildebrandt, K.A. (TU Delft Computer Graphics and Visualisation)

2017

We present novel techniques for visualizing, illustrating, analyzing, and generating carvings in surfaces. In particular, we consider the carvings in the plaster of the cloister of the Magdeburg cathedral, which dates to the 13th century. Due to aging and weathering, the carvings have flattened. Historians and restorers are highly interested in using digitalization techniques to analyze carvings in historic artifacts and monuments and to get impressions and illustrations of their original shape and appearance. Moreover, museums and churches are interested in such illustrations for presenting them to visitors. The techniques that we propose allow for detecting, selecting, and visualizing carving structures. In addition, we introduce an example-based method for generating carvings. The resulting tool, which integrates all techniques, was evaluated by three experienced restorers to assess the usefulness and applicability. Furthermore, we compared our approach with exaggerated shading and other state-of-the-art methods.

feature filtering
Feature extraction
heritage preservation
Frangi filter
ace analysis

http://resolver.tudelft.nl/uuid:98e5b879-3b86-451a-9c30-eb6038371295

https://doi.org/10.1109/tvcg.2016.2598603

1077-2626

IEEE Transactions on Visualization and Computer Graphics, 23 (1), 801-810

Accepted author manuscript

Institutional Repository

journal article

© 2017 K.R.H. Lawonn, Erik Trostmann, Bernhard Preim, K.A. Hildebrandt