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Verfasst von:Wanner, Sven [VerfasserIn]   i
 Goldlücke, Bastian [VerfasserIn]   i
Titel:Variational light field analysis for disparity estimation and super-resolution
Verf.angabe:Sven Wanner, and Bastian Goldluecke
Jahr:2014
Jahr des Originals:2013
Umfang:14 S.
Fussnoten:Published online 2 Aug. 2013 ; Gesehen am 22.09.2020
Titel Quelle:Enthalten in: Institute of Electrical and Electronics EngineersIEEE transactions on pattern analysis and machine intelligence
Ort Quelle:New York, NY : IEEE, 1979
Jahr Quelle:2014
Band/Heft Quelle:36(2014), 3, Seite 606-619
ISSN Quelle:1939-3539
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.
DOI:doi:10.1109/TPAMI.2013.147
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
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:3D reconstruction
 4D light fields
 angular direction
 angular super-resolution
 Cameras
 continuous inverse problem
 convex programming
 convex relaxation techniques
 disparity estimation
 disparity maps
 disparity space
 epipolar plane image analysis
 epipolar plane images
 Estimation
 Geometry
 image reconstruction
 Image reconstruction
 image resolution
 Light fields
 matching cost minimization
 multiview stereo method
 sampling rate
 scene geometry transformations
 spatial direction
 Spatial resolution
 spatial super-resolution
 stereo image processing
 subpixel accuracy
 super-resolution
 super-resolved novel view generation
 Tensile stress
 variational light field analysis
 variational methods
 variational techniques
 view interpolation
 view synthesis
K10plus-PPN:1733525483
Verknüpfungen:→ Zeitschrift

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