Scientists at Delft University of Technology in the Netherlands have created some lifelike reproduction of paintings by Rembrandt and Vincent van Gogh in full color using 3D printing for research. They present their work at the conference Technart Monday in the Rijksmuseum in Amsterdam.
Rijksmuseum in Amsterdam
These work are the Jewish Bride by Rembrandt, a self-portrait of Rembrandt and Flowers in blue vase by Vincent van Gogh.
The goal is not to produce a precise replica of the original but mainly to check out the process of creating the paintings at that time.
"Paintings are versatile near-planar objects with material characteristics that vary widely. The fact that paint has a material presence is often overlooked, mostly because of 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. These varying material characteristics of paintings are first investigated, after which an overview is given of the feasible imaging methods that can capture a painting's color and topography." notes Tim Zaman, a scientist at TU Delft.
3D scanning and 3D printing
Because no imaging method is ideally suited for this task, scientists used a hybrid imaging technique 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 cm2 with an in-plane effective resolution of 50 μm and a depth precision of 9.2 μm. Semi-automated positioning of the system and data stitching consequently allows for the capture of surfaces up to 1m2.
This data can then be used for making a lifelike reproduction in full dimension and full color using 3D printing. With 3D laser scanning and 3D printing researchers discovered the creating process and figured out how the paintings really look like. "Now we can see what hidden figures or details are contained in the paintings." said a researcher.
TU Delft Topologic 3-D Scanning a Rembrandt from The Mauritshuis:
Océ 3-D Fine Art Reproductions
Posted in 3D Scanning
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matt wrote at 9/25/2013 1:43:51 AM: