Estimating Positions and Radiances of a Small Number of Light Sources for Real-Time Image-Based Lighting
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Date
2003
Journal Title
Journal ISSN
Volume Title
Publisher
Eurographics Association
Abstract
Image-based lighting (IBL) of virtual objects has become a popular approach to blending virtual and real scenes. In IBL an omni-directional image of a scene is used as the illumination environment for rendering virtual objects. Typically, this rendering is based on global illumination techniques which are far from capable of real-time performance. In this paper we describe how to estimate the positions and radiances of a small number of point light sources, e.g., on the order of 5 to 10, which will produce virtual object appearances which are consistent with those obtained using IBL. The estimated light source parameters can be used directly in OpenGL rendering for real-time performance. We demonstrate the approach on natural scenes.
Description
@inproceedings{10.2312:egs.20031065,
booktitle = {Eurographics 2003 - Short Presentations},
editor = {},
title = {{Estimating Positions and Radiances of a Small Number of Light Sources for Real-Time Image-Based Lighting}},
author = {Madsen, Claus B. and Sorensen, Mads K. D. and Vittrup, Michael},
year = {2003},
publisher = {Eurographics Association},
ISSN = {1017-4656},
ISBN = {},
DOI = {10.2312/egs.20031065}
}