Jaroslav KÝivŠnek

Geometry-Aware Scattering Compensation for 3D Printing

Denis Sumin*
Max Planck Institut fur Informatik
Tobias Rittig*
Charles University, Prague
Vahid Babaei
Max Planck Institut fur Informatik
Thomas Nindel
Charles University, Prague
Alexander Wilkie
Charles University, Prague

Piotr Didyk
Universita†della Svizzera italiana
Bernd Bickel
Institute of Science and Technology Austria
Jaroslav KÝivŠnek
Charles University, Prague
Karol Myszkowski
Max Planck Institut fur Informatik
Tim Weyrich
University College London

* Denis Sumin and Tobias Rittig share the first authorship of this work.


teaser

A demonstration of 3D printouts obtained with our method. The Earth diameter is 5 cm.


Abstract

Commercially available full-color 3D printing allows for detailed control of material deposition in a volume, but an exact reproduction of a target surface appearance is hampered by the strong subsurface scattering that causes nontrivial volumetric cross-talk at the print surface. Previous work showed how an iterative optimization scheme based on accumulating absorptive materials at the surface can be used to find a volumetric distribution of print materials that closely approximates a given target appearance.
In this work, we first revisit the assumption that pushing the absorptive materials to the surface results in minimal volumetric cross-talk. We design a full-fledged optimization on a small domain for this task and confirm this previously reported heuristic. Then, we extend the above approach that is critically limited to color reproduction on planar surfaces, to arbitrary 3D shapes. Our method enables high-fidelity color texture reproduction on 3D prints by effectively compensating for internal light scattering within arbitrarily shaped objects. In addition, we propose a content-aware gamut mapping that significantly improves color reproduction for the pathological case of thin geometric features. Using a wide range of sample objects with complex textures and geometries, we demonstrate color reproduction whose fidelity is superior to state-of-the-art drivers for color 3D printers.


Reference

Denis Sumin, Tobias Rittig, Vahid Babaei, Thomas Nindel, Alexander Wilkie, Piotr Didyk, Bernd Bickel, Jaroslav KÝivŠnek, Karol Myszkowski, Tim Weyrich. Geometry-Aware Scattering Compensation for 3D Printing. ACM Trans. Graph. (Proc. SIGGRAPH), 2019
DOI | BibTeX


Links & Downloads

paper
fulltext
supplemental
document
supplemental
material

talk slides
pdf (42 MB | 4 MB) pdf (3 MB) zip (11 MB) pptx (43 MB)

Acknowledgments

We thank Donald Degraen for helping with the post-processing of the printouts, Philipp Urban for advice on our evaluation, Sketchfab users William Zarek (Octo Star), laurashea (Red Vase) and CMPLab (Yellow Vase) for the models and the reviewers for their valuable feedback. This project has received funding from the European Union's Horizon 2020 research and innovation programme, under the Marie Sklodowska-Curie grant agreement No 642841 (DISTRO), and under the European Research Council grant agreement No 715767 (MATERIALIZABLE). It was further supported by the Czech Science Foundation grants 16-18964S, 16-08111S and 19-07626S.