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  Enhanced dynamic reflectometry for relightable free-viewpoint video

Theobalt, C., Ahmed, N., Lensch, H. P. A., Magnor, M. A., & Seidel, H.-P.(2006). Enhanced dynamic reflectometry for relightable free-viewpoint video (MPI-I-2006-4-006). Saarbrücken: Max-Planck-Institut für Informatik.

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 Creators:
Theobalt, Christian1, Author           
Ahmed, Naveed1, Author           
Lensch, Hendrik P. A.1, Author           
Magnor, Marcus A.2, Author           
Seidel, Hans-Peter1, Author           
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1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              
2Graphics - Optics - Vision, MPI for Informatics, Max Planck Society, ou_1116549              

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 Abstract: Free-Viewpoint Video of Human Actors allows photo- realistic rendering of real-world people under novel viewing conditions. Dynamic Reflectometry extends the concept of free-view point video and allows rendering in addition under novel lighting conditions. In this work, we present an enhanced method for capturing human shape and motion as well as dynamic surface reflectance properties from a sparse set of input video streams. We augment our initial method for model-based relightable free-viewpoint video in several ways. Firstly, a single-skin mesh is introduced for the continuous appearance of the model. Moreover an algorithm to detect and compensate lateral shifting of textiles in order to improve temporal texture registration is presented. Finally, a structured resampling approach is introduced which enables reliable estimation of spatially varying surface reflectance despite a static recording setup. The new algorithm ingredients along with the Relightable 3D Video framework enables us to realistically reproduce the appearance of animated virtual actors under different lighting conditions, as well as to interchange surface attributes among different people, e.g. for virtual dressing. Our contribution can be used to create 3D renditions of real-world people under arbitrary novel lighting conditions on standard graphics hardware.

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Language(s): eng - English
 Dates: 2006
 Publication Status: Issued
 Pages: 37 p.
 Publishing info: Saarbrücken : Max-Planck-Institut für Informatik
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 Identifiers: URI: http://domino.mpi-inf.mpg.de/internet/reports.nsf/NumberView/2006-4-006
Report Nr.: MPI-I-2006-4-006
BibTex Citekey: TheobaltAhmedLenschMagnorSeidel2006
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Title: Research Report / Max-Planck-Institut für Informatik
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