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- Joel Carranza
- MPI Informatik, Saarbrücken, Germany
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- Christian Theobalt
- MPI Informatik, Saarbrücken, Germany
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- Marcus A. Magnor
- MPI Informatik, Saarbrücken, Germany
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- Hans-Peter Seidel
- MPI Informatik, Saarbrücken, Germany
抄録
<jats:p>In free-viewpoint video, the viewer can interactively choose his viewpoint in 3-D space to observe the action of a dynamic real-world scene from arbitrary perspectives. The human body and its motion plays a central role in most visual media and its structure can be exploited for robust motion estimation and efficient visualization. This paper describes a system that uses multi-view synchronized video footage of an actor's performance to estimate motion parameters and to interactively re-render the actor's appearance from any viewpoint.The actor's silhouettes are extracted from synchronized video frames via background segmentation and then used to determine a sequence of poses for a 3D human body model. By employing multi-view texturing during rendering, time-dependent changes in the body surface are reproduced in high detail. The motion capture subsystem runs offline, is non-intrusive, yields robust motion parameter estimates, and can cope with a broad range of motion. The rendering subsystem runs at real-time frame rates using ubiquous graphics hardware, yielding a highly naturalistic impression of the actor. The actor can be placed in virtual environments to create composite dynamic scenes. Free-viewpoint video allows the creation of camera fly-throughs or viewing the action interactively from arbitrary perspectives.</jats:p>
収録刊行物
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- ACM Transactions on Graphics
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ACM Transactions on Graphics 22 (3), 569-577, 2003-07
Association for Computing Machinery (ACM)
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詳細情報 詳細情報について
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- CRID
- 1360855570782913536
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- NII論文ID
- 30022063348
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- ISSN
- 15577368
- 07300301
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- データソース種別
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- Crossref
- CiNii Articles