Geometry-aware scattering compensation for 3D printing

Sumin D, Rittig T, Babaei V, Nindel T, Wilkie A, Didyk P, Bickel B, Krivanek J, Myszkowski K, Weyrich T (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Acm Transactions on Graphics Association for Computing Machinery (ACM)

Book Volume: 38

Article Number: 111

Journal Issue: 4

DOI: 10.1145/3306346.3322992

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.

Authors with CRIS profile

Tim Weyrich

Involved external institutions

Max Planck Institute for Informatics / Max-Planck-Institut für Informatik DE Germany (DE) Univerzita Karlova v Praze / Charles University in Prague CZ Czech Republic (CZ) Università della Svizzera italiana (USI) CH Switzerland (CH) IST Austria AT Austria (AT) University College London (UCL) GB United Kingdom (GB)

How to cite

APA:

Sumin, D., Rittig, T., Babaei, V., Nindel, T., Wilkie, A., Didyk, P.,... Weyrich, T. (2019). Geometry-aware scattering compensation for 3D printing. Acm Transactions on Graphics, 38(4). https://doi.org/10.1145/3306346.3322992

MLA:

Sumin, Denis, et al. "Geometry-aware scattering compensation for 3D printing." Acm Transactions on Graphics 38.4 (2019).

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