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    Recent Advances in Adaptive Sampling and Reconstruction for Monte Carlo Rendering

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    Date
    2015
    Author
    Zwicker, Matthias
    Jarosz, Wojciech
    Lehtinen, Jaakko
    Moon, Bochang ORCID
    Ramamoorthi, Ravi
    Rousselle, Fabrice
    Sen, Pradeep
    Soler, Cyril
    Yoon, Sungeui E.
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    Abstract
    Monte Carlo integration is firmly established as the basis for most practical realistic image synthesis algorithms because of its flexibility and generality. However, the visual quality of rendered images often suffers from estimator variance, which appears as visually distracting noise. Adaptive sampling and reconstruction algorithms reduce variance by controlling the sampling density and aggregating samples in a reconstruction step, possibly over large image regions. In this paper we survey recent advances in this area. We distinguish between “a priori” methods that analyze the light transport equations and derive sampling rates and reconstruction filters from this analysis, and “a posteriori” methods that apply statistical techniques to sets of samples to drive the adaptive sampling and reconstruction process. They typically estimate the errors of several reconstruction filters, and select the best filter locally to minimize error. We discuss advantages and disadvantages of recent state-of-the-art techniques, and provide visual and quantitative comparisons. Some of these techniques are proving useful in real-world applications, and we aim to provide an overview for practitioners and researchers to assess these approaches. In addition, we discuss directions for potential further improvements.
    BibTeX
    @article {10.1111:cgf.12592,
    journal = {Computer Graphics Forum},
    title = {{Recent Advances in Adaptive Sampling and Reconstruction for Monte Carlo Rendering}},
    author = {Zwicker, Matthias and Jarosz, Wojciech and Lehtinen, Jaakko and Moon, Bochang and Ramamoorthi, Ravi and Rousselle, Fabrice and Sen, Pradeep and Soler, Cyril and Yoon, Sungeui E.},
    year = {2015},
    publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
    DOI = {10.1111/cgf.12592}
    }
    URI
    http://dx.doi.org/10.1111/cgf.12592
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    Eurographics Association copyright © 2013 - 2022 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
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