Goal-based Caustics

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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association and Blackwell Publishing Ltd.
Abstract
We propose a novel system for designing and manufacturing surfaces that produce desired caustic images when illuminated by a light source. Our system is based on a nonnegative image decomposition using a set of possibly overlapping anisotropic Gaussian kernels. We utilize this decomposition to construct an array of continuous surface patches, each of which focuses light onto one of the Gaussian kernels, either through refraction or reflection. We show how to derive the shape of each continuous patch and arrange them by performing a discrete assignment of patches to kernels in the desired caustic. Our decomposition provides for high fidelity reconstruction of natural images using a small collection of patches. We demonstrate our approach on a wide variety of caustic images by manufacturing physical surfaces with a small number of patches.
Description

        
@article{
10.1111:j.1467-8659.2011.01876.x
, journal = {Computer Graphics Forum}, title = {{
Goal-based Caustics
}}, author = {
Papas, Marios
and
Jarosz, Wojciech
and
Jakob, Wenzel
and
Rusinkiewicz, Szymon
and
Matusik, Wojciech
and
Weyrich, Tim
}, year = {
2011
}, publisher = {
The Eurographics Association and Blackwell Publishing Ltd.
}, ISSN = {
1467-8659
}, DOI = {
10.1111/j.1467-8659.2011.01876.x
} }
Citation