Publikation: Spacetime-continuous geometry meshes from multi-view video sequences
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Datum
2005
Autor:innen
Magnor, M.
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IEEE International Conference on Image Processing 2005. Piscataway, NJ: IEEE, 2005, pp. 625-628. ISSN 1522-4880. eISSN 2381-8549. ISBN 0-7803-9134-9. Available under: doi: 10.1109/ICIP.2005.1529828
Zusammenfassung
We reconstruct geometry for a time-varying scene given by a number of video sequences. The dynamic geometry is represented by a 3D hypersurface embedded in space-time. The intersection of the hypersurface with planes of constant time then yields the geometry at a single time instant. In this paper, we model the hypersurface with a collection of triangle meshes, one for each time frame. The photo-consistency error is measured by an error functional defined as an integral over the hypersurface. It can be minimized using a PDE driven surface evolution, which simultaneously optimizes space-time continuity as well. Compared to our previous implementation based on level sets, triangle meshes yield more accurate results, while requiring less memory and computation time. Meshes are also directly compatible with triangle-based rendering algorithms, so no additional post-processing is required.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
004 Informatik
Schlagwörter
Video sequences, Surface reconstruction, Image reconstruction, Layout, Level set, Equations, Rendering (computer graphics), Information geometry, Cameras, Solid modeling
Konferenz
2005 International Conference on Image Processing, 11. Sept. 2005 - 14. Sept. 2005, Genova, Italy
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ISO 690
GOLDLÜCKE, Bastian, M. MAGNOR, 2005. Spacetime-continuous geometry meshes from multi-view video sequences. 2005 International Conference on Image Processing. Genova, Italy, 11. Sept. 2005 - 14. Sept. 2005. In: IEEE International Conference on Image Processing 2005. Piscataway, NJ: IEEE, 2005, pp. 625-628. ISSN 1522-4880. eISSN 2381-8549. ISBN 0-7803-9134-9. Available under: doi: 10.1109/ICIP.2005.1529828BibTex
@inproceedings{Goldlucke2005Space-41039,
year={2005},
doi={10.1109/ICIP.2005.1529828},
title={Spacetime-continuous geometry meshes from multi-view video sequences},
isbn={0-7803-9134-9},
issn={1522-4880},
publisher={IEEE},
address={Piscataway, NJ},
booktitle={IEEE International Conference on Image Processing 2005},
pages={625--628},
author={Goldlücke, Bastian and Magnor, M.}
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<dcterms:abstract xml:lang="eng">We reconstruct geometry for a time-varying scene given by a number of video sequences. The dynamic geometry is represented by a 3D hypersurface embedded in space-time. The intersection of the hypersurface with planes of constant time then yields the geometry at a single time instant. In this paper, we model the hypersurface with a collection of triangle meshes, one for each time frame. The photo-consistency error is measured by an error functional defined as an integral over the hypersurface. It can be minimized using a PDE driven surface evolution, which simultaneously optimizes space-time continuity as well. Compared to our previous implementation based on level sets, triangle meshes yield more accurate results, while requiring less memory and computation time. Meshes are also directly compatible with triangle-based rendering algorithms, so no additional post-processing is required.</dcterms:abstract>
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