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| HAL : inria-00321983, version 1 |
| Voir la fiche détaillée |  BibTeX,EndNote,... |
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| Motion Compression using Principal Geodesics Analysis |
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| Maxime Tournier 1Xiaomao Wu 1 |
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| (2008) |
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| Due to the growing need for large quantities of human animation data in the entertainment industry, it has became a necessity to compress motion capture sequences in order to ease their storage and transmission. We present a novel, lossy compression method for human motion data that exploits both temporal and spatial coherence. We first build a compact skeleton pose model from a single motion using Principal Geodesics Analysis (PGA). The key idea is to perform compression by only storing the model parameters along with the end-joints and root joint trajectories in the output data. The input data are recovered by optimizing PGA variables to match end-effectors positions in an inverse kinematics approach. Our experimental results show that considerable compression rates can be obtained using our method, with few reconstruction and perceptual errors. Thanks to the embedding of the pose model, our system can also be suitable for motion editing purposes. |
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| 1 : | EVASION (INRIA Grenoble Rhône-Alpes / LJK Laboratoire Jean Kuntzmann) |
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CNRS : UMR5224 – INRIA – Laboratoire Jean Kuntzmann – Institut National Polytechnique de Grenoble (INPG) – Université Joseph Fourier - Grenoble I – Université Pierre Mendès-France - Grenoble II |
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| 2 : | Laboratoire de Recherche en Informatique et ses Applications de Vannes et Lorient (VALORIA) |
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Université de Bretagne Sud |
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| 3 : | PERCEPTION (INRIA Grenoble Rhône-Alpes / LJK Laboratoire Jean Kuntzmann) |
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INRIA – Laboratoire Jean Kuntzmann – CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Institut National Polytechnique de Grenoble (INPG) – Université Pierre Mendès-France - Grenoble II |
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| Domaine | : | Informatique/Synthèse d'image et réalité virtuelle |
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| Liste des fichiers attachés à ce document : | |||||
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| inria-00321983, version 1 | |
| http://hal.inria.fr/inria-00321983 | |
| oai:hal.inria.fr:inria-00321983 | |
| Contributeur : Maxime Tournier | |
| Soumis le : Mardi 16 Septembre 2008, 13:31:15 | |
| Dernière modification le : Mercredi 17 Septembre 2008, 12:56:02 | |
