Superresolution Reflectance Fields: Synthesizing images for intermediate light directions

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dc.contributor.authorFuchs, Martinen_US
dc.contributor.authorLensch, Hendrik P. A.en_US
dc.contributor.authorBlanz, Volkeren_US
dc.contributor.authorSeidel, Hans-Peteren_US
dc.date.accessioned2015-02-21T15:41:41Z
dc.date.available2015-02-21T15:41:41Z
dc.date.issued2007en_US
dc.description.abstractCaptured reflectance fields tend to provide a relatively coarse sampling of the incident light directions. As a result, sharp illumination features, such as highlights or shadow boundaries, are poorly reconstructed during relighting; highlights are disconnected, and shadows show banding artefacts. In this paper, we propose a novel interpolation technique for 4D reflectance fields that reconstructs plausible images even for non-observed light directions. Given a sparsely sampled reflectance field, we can effectively synthesize images as they would have been obtained from denser sampling. The processing pipeline consists of three steps: (1) segmentation of regions where intermediate lighting cannot be obtained by blending, (2) appropriate flow algorithms for highlights and shadows, plus (3) a final reconstruction technique that uses image-based priors to faithfully correct errors that might be introduced by the segmentation or flow step. The algorithm reliably reproduces scenes that contain specular highlights, interreflections, shadows or caustics.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume26en_US
dc.identifier.doi10.1111/j.1467-8659.2007.01067.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages447-456en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2007.01067.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titleSuperresolution Reflectance Fields: Synthesizing images for intermediate light directionsen_US
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