ICL Multispectral Light Stage: Building a Versatile LED Sphere with Off-the-shelf Components

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dc.contributor.authorKampouris, Christosen_US
dc.contributor.authorGhosh, Abhijeeten_US
dc.contributor.editorReinhard Klein and Holly Rushmeieren_US
dc.date.accessioned2018-08-29T06:56:32Z
dc.date.available2018-08-29T06:56:32Z
dc.date.issued2018
dc.description.abstractWe describe the design and implementation of a versatile multispectral light stage (LED sphere) consisting of 168 RGB and color temperature controllable white (W+) lamps, respectively. The light stage is powered with two sets of off-the-shelf programmable MR16 LED lamps producing RGB and color temperature controllable white (2700K - 5700K) illumination. The design is heavily inspired by various USC-ICT light stages, particularly Light Stages 3, 5 and X. However, unlike a typical geodesic (subdivided icosahedron) dome structure, the structure of the LED sphere has been fabricated along spherical coordinates with latitude-longitude profiles for a simplified wiring and control layout of the LED lamps, and for simplifying polarization of incident illumination. These design decisions facilitate construction while providing a versatile solution for a variety of applications including reflectance capture, image-based lighting reproduction, and multiview facial geometry and appearance acquisition.en_US
dc.description.sectionheadersMeasurement and Fluorescence
dc.description.seriesinformationWorkshop on Material Appearance Modeling
dc.identifier.doi10.2312/mam.20181190
dc.identifier.isbn978-3-03868-055-0
dc.identifier.issn2309-5059
dc.identifier.pages1-4
dc.identifier.urihttps://doi.org/10.2312/mam.20181190
dc.identifier.urihttps://diglib.eg.org:443/handle/10.2312/mam20181190
dc.publisherThe Eurographics Associationen_US
dc.subject!
dc.subject
dc.titleICL Multispectral Light Stage: Building a Versatile LED Sphere with Off-the-shelf Componentsen_US
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MAM2018: Eurographics Workshop on Material Appearance Modeling