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dc.contributor.authorGitlina, Yuliyaen_US
dc.contributor.authorGuarnera, Giuseppe Claudioen_US
dc.contributor.authorDhillon, Daljit Singhen_US
dc.contributor.authorHansen, Janen_US
dc.contributor.authorLattas, Alexandrosen_US
dc.contributor.authorPai, Dineshen_US
dc.contributor.authorGhosh, Abhijeeten_US
dc.contributor.editorDachsbacher, Carsten and Pharr, Matten_US
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.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.rightsAttribution 4.0 International License
dc.subjectComputing methodologies
dc.subjectReflectance modeling
dc.subjectComputational photography
dc.titlePractical Measurement and Reconstruction of Spectral Skin Reflectanceen_US
dc.description.seriesinformationComputer Graphics Forum

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  • 39-Issue 4
    Rendering 2020 - Symposium Proceedings

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Attribution 4.0 International License
Except where otherwise noted, this item's license is described as Attribution 4.0 International License