Analysis of Coded Apertures for Defocus Deblurring of HDR Images

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dc.contributor.authorGarcia, Luisen_US
dc.contributor.authorPresa, Laraen_US
dc.contributor.authorGutierrez, Diegoen_US
dc.contributor.authorMasia, Belenen_US
dc.contributor.editorIsabel Navazo and Gustavo Patowen_US
dc.date.accessioned2013-11-08T10:18:24Z
dc.date.available2013-11-08T10:18:24Z
dc.date.issued2012en_US
dc.description.abstractIn recent years, research on computational photography has reached important advances in the field of coded apertures for defocus deblurring. These advances are known to perform well for low dynamic range images (LDR), but nothing is written about the extension of these techniques to high dynamic range imaging (HDR). In this paper, we focus on the analysis of how existing coded apertures techniques perform in defocus deblurring of HDR images. We present and analyse three different methods for recovering focused HDR radiances from an input of blurred LDR exposures and from a single blurred HDR radiance, and compare them in terms of the quality of their results, given by the perceptual metric HDR-VDP2. Our research includes the analysis of the employment of different statistical deconvolution priors, made both from HDR and LDR images, performing synthetic experiments as well as real ones.en_US
dc.description.seriesinformationSpanish Computer Graphics Conferenceen_US
dc.identifier.isbn978-3-905673-92-0en_US
dc.identifier.urihttps://doi.org/10.2312/LocalChapterEvents/CEIG/CEIG12/099-108en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectI.4.3 [Image Processing and Computer Vision]en_US
dc.subjectEnhancementen_US
dc.subjectSharpening and deblurringen_US
dc.titleAnalysis of Coded Apertures for Defocus Deblurring of HDR Imagesen_US
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