Publikation: Spacetime-coherent geometry reconstruction from multiple video streams
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By reconstructing time-varying geometry one frame at a time, one ignores the continuity of natural motion, wasting useful information about the underlying video-image formation process and taking into account temporally discontinuous reconstruction results. In 4D spacetime, the surface of a dynamic object describes a continuous 3D hyper-surface. This hyper-surface can be implicitly defined as the minimum of an energy functional designed to optimize photo-consistency. Based on an Eider-Lagrange reformulation of the problem, we find this hyper-surface from a handful of synchronized video recordings. The resulting object geometry varies smoothly over time, and intermittently invisible object regions are correctly interpolated from previously and/or future frames.
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MAGNOR, M., Bastian GOLDLÜCKE, 2004. Spacetime-coherent geometry reconstruction from multiple video streams. Proceedings. 2nd International Symposium on 3D Data Processing, Visualization and Transmission, 2004. 3DPVT 2004.. Thessaloniki, Greece, 6. Sept. 2004 - 9. Sept. 2004. In: ALOIMONOS, Yiannis, ed.. Proceedings. 2nd International Symposium on 3D Data Processing, Visualization and Transmission, 2004. 3DPVT 2004.. Los Alamitos, California: IEEE, 2004, pp. 365-372. ISBN 0-7695-2223-8. Available under: doi: 10.1109/TDPVT.2004.1335231BibTex
@inproceedings{Magnor2004Space-41040, year={2004}, doi={10.1109/TDPVT.2004.1335231}, title={Spacetime-coherent geometry reconstruction from multiple video streams}, isbn={0-7695-2223-8}, publisher={IEEE}, address={Los Alamitos, California}, booktitle={Proceedings. 2nd International Symposium on 3D Data Processing, Visualization and Transmission, 2004. 3DPVT 2004.}, pages={365--372}, editor={Aloimonos, Yiannis}, author={Magnor, M. and Goldlücke, Bastian} }
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