Camera Setup Optimization for Optical Tracking in Virtual Environments

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dc.contributor.authorCerfontaine, Philippe A.en_US
dc.contributor.authorSchirski, Marcen_US
dc.contributor.authorBündgens, Danielen_US
dc.contributor.authorKuhlen, Torstenen_US
dc.contributor.editorMing Lin and Roger Hubbolden_US
dc.date.accessioned2014-01-27T10:47:24Z
dc.date.available2014-01-27T10:47:24Z
dc.date.issued2006en_US
dc.description.abstractIn this paper we present a method for finding the optimal camera alignment for a tracking system with multiple cameras, by specifying the volume that should be tracked and an initial camera setup. The approach we use is twofold: on the one hand, we use a rather simple gradient based steepest descent method and on the other hand, we also implement a simulated annealing algorithm that features guaranteed optimality assertions. Both approaches are fully automatic and take advantage of modern graphics hardware since we implemented a GPU-based accelerated visibility test. The proposed algorithms can automatically optimize the whole camera setup by adjusting the given set of parameters. The optimization may have different goals depending on the desired application, e.g. one may wish to optimize towards the widest possible coverage of the specified volume, while others would prefer to maximize the number of cameras seeing a certain area to overcome heavy occlusion problems during the tracking process. Our approach also considers parameter constraints that the user may specify according to the local environment where the cameras have to be set up. This makes it possible to simply formulate higher level constraints e.g. all cameras have a vertical up vector. It individually adapts the optimization to the given situation and also asserts the feasibility of the algorithm s output.en_US
dc.description.seriesinformationEurographics Symposium on Virtual Environmentsen_US
dc.identifier.isbn3-905673-33-9en_US
dc.identifier.issn1727-530Xen_US
dc.identifier.urihttps://doi.org/10.2312/EGVE/EGVE06/081-088en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): G.1.6 [Numerical Analysis]: Optimization Constrained optimization, Global optimization, Gradient methods, Simulated annealing I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism Virtual reality I.4.1 [Image Processing and Computer Vision]: Digitization and Image Capture Camera calibration I.4.8 [Image Processing and Computer Vision]: Scene Analysis Motion, Trackingen_US
dc.titleCamera Setup Optimization for Optical Tracking in Virtual Environmentsen_US
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EGVE06: 12th Eurographics Symposium on Virtual Environments