Wavelet Radiosity

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Wavelet Radiosity

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dc.contributor.author Cohen, Michael F.
dc.contributor.author Gortler, Steven
dc.contributor.author Schröder, Peter
dc.contributor.author Hanrahan, Pat
dc.date.accessioned 2009-02-25T21:50:14Z
dc.date.issued 1993
dc.identifier.citation Gortler, Steven J., Peter Schröder, Michael F. Cohen, and Pat Hanrahan. 1993. Wavelet radiosity. In Proceedings of the 20th annual conference on computer graphics and interactive techniques (SIGGRAPH 1993), August 1-6, 1993, Orlando, Flor., ed. SIGGRAPH and and James T. Kajiya, 221-230. New York, NY: ACM Press. en
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:2634172
dc.description.abstract Radiosity methods have been shown to be an effective means to solve the global illumination problem in Lambertian diffuse environments. These methods approximate the radiosity integral equation by projecting the unknown radiosity function into a set of basis functions with limited support resulting in a set of n linear equations where n is the number of discrete elements in the scene. Classical radiosity methods required the evaluation of n2 interaction coefficients. Efforts to reduce the number of required coefficients without compromising error bounds have focused on raising the order of the basis functions, meshing, accounting for discontinuities, and on developing hierarchical approaches, which have been shown to reduce the required interactions to O(n). In this paper we show that the hierarchical radiosity formulation is an instance of a more general set of methods based on wavelet theory. This general framework offers a unified view of both higher order element approaches to radiosity and the hierarchical radiosity methods. After a discussion of the relevant theory, we discuss a new set of linear time hierarchical algorithms based on wavelets such as the multiwavelet family and a flatlet basis which we introduce. Initial results of experimentation with these basis sets are demonstrated and discussed. en
dc.description.sponsorship Engineering and Applied Sciences en
dc.language.iso en_US en
dc.publisher Association for Computing Machinery en
dc.relation.isversionof http://dx.doi.org/10.1145/166117.166146 en
dash.license LAA
dc.subject numerical analysis en
dc.subject hierarchical radiosity en
dc.subject computer graphics en
dc.subject wavelets en
dc.subject global illumination en
dc.title Wavelet Radiosity en
dash.depositing.author Gortler, Steven

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  • FAS Scholarly Articles [7289]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

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