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Accurate Light Source Acquisition and Rendering

Abstract : Realistic image synthesis requires both complex and realistic models of real-world light sources and efficient rendering algorithms to deal with them. In this paper, we describe a processing pipeline for dealing with complex light sources from acquisition to global illumination rendering. We carefully design optical filters to guarantee high precision measurements of real-world light sources. We discuss two practically feasible setups that allow us to measure light sources with different characteristics.Finally, we introduce an efficient importance sampling algorithm for our representation that can be used, for example, in conjunction with Photon Maps.
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Contributor : Xavier Granier <>
Submitted on : Sunday, October 27, 2013 - 10:45:47 AM
Last modification on : Wednesday, January 6, 2021 - 4:10:05 PM
Long-term archiving on: : Friday, April 7, 2017 - 5:40:20 PM

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Michael Goesele, Xavier Granier, Wolfgang Heidrich, Hans-Peter Seidel. Accurate Light Source Acquisition and Rendering. ACM Transactions on Graphics, Association for Computing Machinery, 2003, 22 (3), pp.621 - 630. ⟨10.1145/882262.882316⟩. ⟨hal-00308294v2⟩

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