eprintid: 10043900
rev_number: 20
eprint_status: archive
userid: 608
dir: disk0/10/04/39/00
datestamp: 2018-02-21 10:39:59
lastmod: 2021-09-29 22:41:58
status_changed: 2018-02-21 10:39:59
type: article
metadata_visibility: show
creators_name: Elek, O
creators_name: Sumin, D
creators_name: Zhang, R
creators_name: Weyrich, T
creators_name: Myszkowski, K
creators_name: Bickel, B
creators_name: Wilkie, A
creators_name: Křivánek, J
title: Scattering-aware Texture Reproduction for 3D Printing
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F48
keywords: computational fabrication, appearance reproduction, appearance enhancement, sub-surface light transport
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Color texture reproduction in 3D printing commonly ignores volumetric light transport (cross-talk) between surface points on a 3D print. Such light diffusion leads to significant blur of details and color bleeding, and is particularly severe for highly translucent resin-based print materials. Given their widely varying scattering properties, this cross-talk between surface points strongly depends on the internal structure of the volume surrounding each surface point. Existing scattering-aware methods use simplified models for light difusion, and often accept the visual blur as an immutable property of the print medium. In contrast, our work counteracts heterogeneous scattering to obtain the impression of a crisp albedo texture on top of the 3D print, by optimizing for a fully volumetric material distribution that preserves the target appearance. Our method employs an efficient numerical optimizer on top of a general Monte-Carlo simulation of heterogeneous scattering, supported by a practical calibration procedure to obtain scattering parameters from a given set of printer materials. Despite the inherent translucency of the medium, we reproduce detailed surface textures on 3D prints. We evaluate our system using a commercial, five-tone 3D print process and compare against the printer's native color texturing mode, demonstrating that our method preserves high-frequency features well without having to compromise on color gamut.
date: 2017-11
date_type: published
publisher: ACM
official_url: http://dx.doi.org/10.1145/3130800.3130890
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1512677
doi: 10.1145/3130800.3130890
lyricists_name: Weyrich, Tim
lyricists_id: TAWEY36
actors_name: Allington-Smith, Dominic
actors_id: DAALL44
actors_role: owner
full_text_status: public
publication: ACM Transactions on Graphics
volume: 36
number: 6
article_number: 241
citation:        Elek, O;    Sumin, D;    Zhang, R;    Weyrich, T;    Myszkowski, K;    Bickel, B;    Wilkie, A;           Elek, O;  Sumin, D;  Zhang, R;  Weyrich, T;  Myszkowski, K;  Bickel, B;  Wilkie, A;  Křivánek, J;   - view fewer <#>    (2017)    Scattering-aware Texture Reproduction for 3D Printing.                   ACM Transactions on Graphics , 36  (6)    , Article 241.  10.1145/3130800.3130890 <https://doi.org/10.1145/3130800.3130890>.       Green open access   
 
document_url: https://discovery-pp.ucl.ac.uk/id/eprint/10043900/1/Weyrich_ElekSumin2017SGA.pdf