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dc.contributor.authorGitlina, Yuliya
dc.contributor.authorGuarnera, Giuseppe Claudio
dc.contributor.authorDhillon, Daljit Singh
dc.contributor.authorHansen, Jan
dc.contributor.authorLattas, Alexandros
dc.contributor.authorPai, Dinesh
dc.contributor.authorGhosh, Abhijeet
dc.date.accessioned2020-09-02T08:37:56Z
dc.date.available2020-09-02T08:37:56Z
dc.date.created2020-09-01T16:55:19Z
dc.date.issued2020
dc.identifier.citationComputer graphics forum (Print). 2020, 39 (4), 75-89.en_US
dc.identifier.issn0167-7055
dc.identifier.urihttps://hdl.handle.net/11250/2675951
dc.description.abstractWe present two practical methods for measurement of spectral skin reflectance suited for live subjects, and drive a spectral BSSRDF model with appropriate complexity to match skin appearance in photographs, including human faces. Our primary measurement method employs illuminating a subject with two complementary uniform spectral illumination conditions using a multispectral LED sphere to estimate spatially varying parameters of chromophore concentrations including melanin and hemoglobin concentration, melanin blend‐type fraction, and epidermal hemoglobin fraction. We demonstrate that our proposed complementary measurements enable higher‐quality estimate of chromophores than those obtained using standard broadband illumination, while being suitable for integration with multiview facial capture using regular color cameras. Besides novel optimal measurements under controlled illumination, we also demonstrate how to adapt practical skin patch measurements using a hand‐held dermatological skin measurement device, a Miravex Antera 3D camera, for skin appearance reconstruction and rendering. Furthermore, we introduce a novel approach for parameter estimation given the measurements using neural networks which is significantly faster than a lookup table search and avoids parameter quantization. We demonstrate high quality matches of skin appearance with photographs for a variety of skin types with our proposed practical measurement procedures, including photorealistic spectral reproduction and renderings of facial appearance.en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.titlePractical Measurement and Reconstruction of Spectral Skin Reflectanceen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber75-89en_US
dc.source.volume39en_US
dc.source.journalComputer graphics forum (Print)en_US
dc.source.issue4en_US
dc.identifier.doi10.1111/cgf.14055
dc.identifier.cristin1826578
dc.relation.projectNorges forskningsråd: 288670en_US
dc.description.localcodeLocked until 20.7.2021 due to copyright restrictions. This is the peer reviewed version of an article, which has been published in final form at [https://doi.org/10.1111/cgf.14055]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. "en_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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