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| Verfasst von: | Wanner, Sven [VerfasserIn]  |
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| | Goldlücke, Bastian [VerfasserIn] |
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| Titel: | Variational light field analysis for disparity estimation and super-resolution |
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| Verf.angabe: | Sven Wanner, and Bastian Goldluecke |
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| Jahr: | 2014 |
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| Jahr des Originals: | 2013 |
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| Umfang: | 14 S. |
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| Fussnoten: | Published online 2 Aug. 2013 ; Gesehen am 22.09.2020 |
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| Titel Quelle: | Enthalten in: Institute of Electrical and Electronics EngineersIEEE transactions on pattern analysis and machine intelligence |
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| Ort Quelle: | New York, NY : IEEE, 1979 |
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| Jahr Quelle: | 2014 |
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| Band/Heft Quelle: | 36(2014), 3, Seite 606-619 |
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| ISSN Quelle: | 1939-3539 |
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| Abstract: | We develop a continuous framework for the analysis of 4D light fields, and describe novel variational methods for disparity reconstruction as well as spatial and angular super-resolution. Disparity maps are estimated locally using epipolar plane image analysis without the need for expensive matching cost minimization. The method works fast and with inherent subpixel accuracy since no discretization of the disparity space is necessary. In a variational framework, we employ the disparity maps to generate super-resolved novel views of a scene, which corresponds to increasing the sampling rate of the 4D light field in spatial as well as angular direction. In contrast to previous work, we formulate the problem of view synthesis as a continuous inverse problem, which allows us to correctly take into account foreshortening effects caused by scene geometry transformations. All optimization problems are solved with state-of-the-art convex relaxation techniques. We test our algorithms on a number of real-world examples as well as our new benchmark data set for light fields, and compare results to a multiview stereo method. The proposed method is both faster as well as more accurate. Data sets and source code are provided online for additional evaluation. |
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| DOI: | doi:10.1109/TPAMI.2013.147 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
DOI: https://doi.org/10.1109/TPAMI.2013.147 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | 3D reconstruction |
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| | 4D light fields |
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| | angular direction |
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| | angular super-resolution |
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| | Cameras |
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| | continuous inverse problem |
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| | convex programming |
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| | convex relaxation techniques |
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| | disparity estimation |
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| | disparity maps |
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| | disparity space |
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| | epipolar plane image analysis |
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| | epipolar plane images |
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| | Estimation |
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| | Geometry |
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| | image reconstruction |
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| | Image reconstruction |
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| | image resolution |
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| | Light fields |
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| | matching cost minimization |
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| | multiview stereo method |
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| | sampling rate |
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| | scene geometry transformations |
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| | spatial direction |
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| | Spatial resolution |
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| | spatial super-resolution |
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| | stereo image processing |
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| | subpixel accuracy |
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| | super-resolution |
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| | super-resolved novel view generation |
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| | Tensile stress |
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| | variational light field analysis |
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| | variational methods |
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| | variational techniques |
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| | view interpolation |
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| | view synthesis |
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| K10plus-PPN: | 1733525483 |
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| Verknüpfungen: | → Zeitschrift |
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Variational light field analysis for disparity estimation and super-resolution / Wanner, Sven [VerfasserIn]; 2014 (Online-Ressource)
