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A General Framework for Efficient 2D and 3D Facial Expression Analogy

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons44343

Dong,  Zhao
Computer Graphics, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons45610

Theobalt,  Christian
Computer Graphics, MPI for Informatics, Max Planck Society;
Programming Logics, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons45449

Seidel,  Hans-Peter
Computer Graphics, MPI for Informatics, Max Planck Society;

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Zitation

Song, M., Dong, Z., Theobalt, C., Wang, H., Liu, Z., & Seidel, H.-P. (2007). A General Framework for Efficient 2D and 3D Facial Expression Analogy. IEEE Transactions on Multimedia, 9(7), 1384-1395. doi:10.1109/TMM.2007.906591.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-1DEA-A
Zusammenfassung
Facial expression analogy provides computer animation professionals with a tool to map expressions of an arbitrary source face onto an arbitrary target face. In the recent past, several algorithms have been presented in the literature that aim at putting the expression analogy paradigm into practice. Some of these methods exclusively handle expression mapping between 3D face models, while others enable the transfer of expressions between images of faces only. None of them, however, represents a more general framework that can be applied to either of these two face representations. In this paper, we describe a novel generic method for analogy-based facial animation that employs the same efficient framework to transfer facial expressions between arbitrary 3D face models, as well as between images of performer’s faces. We propose a novel geometry encoding for triangle meshes, vertex-tent-coordinates, that enables us to formulate expression transfer in the 2D and the 3D case as a solution to a simple system of linear equations. Our experiments show that our method outperforms many previous analogy-based animation approaches in terms of achieved animation quality, computation time and generality.