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    Convolutional Sparse Coding for High Dynamic Range Imaging

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    Date
    2016
    Author
    Serrano, Ana
    Heide, Felix
    Gutierrez, Diego
    Wetzstein, Gordon
    Masia, Belen
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    Abstract
    Current HDR acquisition techniques are based on either (i) fusing multibracketed, low dynamic range (LDR) images, (ii) modifying existing hardware and capturing different exposures simultaneously with multiple sensors, or (iii) reconstructing a single image with spatially-varying pixel exposures. In this paper, we propose a novel algorithm to recover high-quality HDRI images from a single, coded exposure. The proposed reconstruction method builds on recently-introduced ideas of convolutional sparse coding (CSC); this paper demonstrates how to make CSC practical for HDR imaging. We demonstrate that the proposed algorithm achieves higher-quality reconstructions than alternative methods, we evaluate optical coding schemes, analyze algorithmic parameters, and build a prototype coded HDR camera that demonstrates the utility of convolutional sparse HDRI coding with a custom hardware platform.
    BibTeX
    @article {10.1111:cgf.12819,
    journal = {Computer Graphics Forum},
    title = {{Convolutional Sparse Coding for High Dynamic Range Imaging}},
    author = {Serrano, Ana and Heide, Felix and Gutierrez, Diego and Wetzstein, Gordon and Masia, Belen},
    year = {2016},
    publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
    ISSN = {1467-8659},
    DOI = {10.1111/cgf.12819}
    }
    URI
    http://dx.doi.org/10.1111/cgf.12819
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    • 35-Issue 2
    • EG 2016 - Full Papers - CGF 35-Issue 2

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    Eurographics Association copyright © 2013 - 2023 
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    Theme by @mire NV
    System hosted at  Graz University of Technology.
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