Goal-based caustics

Marios Papas, Wojciech Jarosz, Wenzel Jakob, Szymon Rusinkiewicz, Wojciech Matusik, Tim Weyrich

Research output: Contribution to journalConference article

52 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)503-511
Number of pages9
JournalComputer Graphics Forum
Volume30
Issue number2
DOIs
StatePublished - Jan 1 2011
Event32nd Annual Conference on European Association for Computer Graphics, EUROGRAPHICS 2011 - Llandudno, Wales, United Kingdom
Duration: Apr 11 2011Apr 15 2011

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design

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    Papas, M., Jarosz, W., Jakob, W., Rusinkiewicz, S., Matusik, W., & Weyrich, T. (2011). Goal-based caustics. Computer Graphics Forum, 30(2), 503-511. https://doi.org/10.1111/j.1467-8659.2011.01876.x