"A Reflective Light Stage"
Institute for Creative Technologies, USC, ICT-TR-04.2006, December 2006
Abstract
We present a novel acquisition device to capture high resolution 4D reflectance fields of real scenes. The device consists of a concave hemispherical surface coated with a rough specular paint and a digital video projector with a fish-eye lens positioned near the center of the hemisphere. The scene is placed near the projector, also near the center, and photographed from a fixed vantage point. The projector projects a high-resolution image of incident illumination which is reflected by the rough hemispherical surface to become the illumination on the scene. We demonstrate the utility of this device by capturing a high resolution hemispherical reflectance field of a specular object which would be difficult to capture using previous acquisition techniques.
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Bibtex
Institute for Creative Technologies, USC, ICT-TR-04.2006, December 2006
AbstractWe present a novel acquisition device to capture high resolution 4D reflectance fields of real scenes. The device consists of a concave hemispherical surface coated with a rough specular paint and a digital video projector with a fish-eye lens positioned near the center of the hemisphere. The scene is placed near the projector, also near the center, and photographed from a fixed vantage point. The projector projects a high-resolution image of incident illumination which is reflected by the rough hemispherical surface to become the illumination on the scene. We demonstrate the utility of this device by capturing a high resolution hemispherical reflectance field of a specular object which would be difficult to capture using previous acquisition techniques.
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- Peers_TechReport2006.pdf (1.11Mb)
Bibtex
@techreport{Peers:2006:RLS,
author = {Peers, Pieter and Hawkins, Tim and Debevec, Paul},
title = {A Reflective Light Stage},
month = {December},
year = {2006},
institution = {Institute for Creative Technologies, USC},
number = {ICT-TR-04.2006},
}
author = {Peers, Pieter and Hawkins, Tim and Debevec, Paul},
title = {A Reflective Light Stage},
month = {December},
year = {2006},
institution = {Institute for Creative Technologies, USC},
number = {ICT-TR-04.2006},
}