Print Email Facebook Twitter Simultaneous capture of the color and topography of paintings using fringe encoded stereo vision Title Simultaneous capture of the color and topography of paintings using fringe encoded stereo vision Author Zaman, T. Jonker, P.P. Lenseigne, B.A.J. Dik, J. Faculty Mechanical, Maritime and Materials Engineering Department Chemical Engineering Date 2014-12-04 Abstract Introduction: Paintings are versatile near-planar objects with material characteristics that vary widely. The fact that paint has a material presence is often overlooked, mostly due to the fact that we encounter many of these artworks through two dimensional reproductions. The capture of paintings in the third dimension is not only interesting for study, restoration and conservation, but it also facilitates making three dimensional reproductions through novel 3-D printing methods. No single imaging method is ideally suited to capture the painting’s color and topography and each of them have specific drawbacks. We have therefore designed an efficient hybrid imaging system dedicated to capturing paintings in both color and topography with a high resolution. Results: A hybrid solution between fringe projection and stereo imaging is proposed involving two cameras and a projector. Fringe projection is aided by sparse stereo matching to serve as an image encoder. These encoded images processed by the stereo cameras then help solve the correspondence problem in stereo matching, leading to a dense and accurate topographical map, while simultaneously capturing its color. Through high-end cameras, special lenses and filters we capture a surface area of 170 square centimeter with an in-plane effective resolution of 50 micron and a depth precision of 9 micron. Semi-automated positioning of the system and data stitching consequently allows for the capture of larger surfaces. The capture of the 2 square meter big Jewish Bride by Rembrandt yielded 1 billion 3-D points. Conclusion: The reproductive properties of the imaging system are conform the digitization guidelines for cultural heritage. The data has enabled us to make high resolution 3-D prints of the works by Rembrandt and Van Gogh we have captured, and confirms that the system performs well in capturing both the color and depth information. Subject 3-Dpaintingtopographyfringe encodingstereo visionOA-Fund TU Delft To reference this document use: http://resolver.tudelft.nl/uuid:df31145f-d145-4299-8577-c377851d078b DOI https://doi.org/10.1186/s40494-014-0023-0 Publisher Springer Source http://www.heritagesciencejournal.com/content/2/1/23 Source Heritage Science, 2 (23), 2014 Part of collection Institutional Repository Document type journal article Rights © 2014 Zaman et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Files PDF s40494-014-0023-0.pdf 2.44 MB Close viewer /islandora/object/uuid:df31145f-d145-4299-8577-c377851d078b/datastream/OBJ/view