Fabricable Unobtrusive 3D-QR-Codes with Directional Light

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dc.contributor.authorPeng, Haoen_US
dc.contributor.authorLiu, Peiqingen_US
dc.contributor.authorLu, Linen_US
dc.contributor.authorSharf, Andreien_US
dc.contributor.authorLiu, Linen_US
dc.contributor.authorLischinski, Danien_US
dc.contributor.authorChen, Baoquanen_US
dc.contributor.editorJacobson, Alec and Huang, Qixingen_US
dc.date.accessioned2020-07-05T13:25:46Z
dc.date.available2020-07-05T13:25:46Z
dc.date.issued2020
dc.description.abstractQR code is a 2D matrix barcode widely used for product tracking, identification, document management and general marketing. Recently, there have been various attempts to utilize QR codes in 3D manufacturing by carving QR codes on the surface of the printed 3D shape. Nevertheless, significant shape editing and modulation may be required to allow readability of the embedded 3D-QR-codes with good decoding accuracy. In this paper, we introduce a novel QR code 3D fabrication framework aimed at unobtrusive embedding of 3D-QR-codes in the shape hence introducing minimal shape modulation. Essentially, our method computes bi-directional carvings in the 3D shape surface to obtain the black-and-white QR pattern. By using a directional light source, the black-and-white QR pattern emerges as lighted and shadow casted blocks on the shape respectively. To account for minimal modulation and elusiveness, we optimize the QR code carving w.r.t. shape geometry, visual disparity and light source position. Our technique employs a simulation of lighting phenomena through carved modules on the shape to ensure adequate contrast of the printed 3D-QR-code.en_US
dc.description.number5
dc.description.sectionheadersComputational Geometry and Fabrication
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume39
dc.identifier.doi10.1111/cgf.14065
dc.identifier.issn1467-8659
dc.identifier.pages15-27
dc.identifier.urihttps://doi.org/10.1111/cgf.14065
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf14065
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectComputing methodologies
dc.subjectVolumetric models
dc.subjectParametric curve and surface models
dc.titleFabricable Unobtrusive 3D-QR-Codes with Directional Lighten_US
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