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Motion Compression using Principal Geodesics Analysis

Maxime Tournier 1 Xiaomao Wu 1 Nicolas Courty 2 Élise Arnaud 3 Lionel Reveret 1
1 EVASION - Virtual environments for animation and image synthesis of natural objects
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology
3 PERCEPTION - Interpretation and Modelling of Images and Videos
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology
Abstract : 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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https://hal.inria.fr/inria-00321983
Contributor : Maxime Tournier Connect in order to contact the contributor
Submitted on : Tuesday, September 16, 2008 - 1:31:15 PM
Last modification on : Sunday, February 20, 2022 - 5:44:01 PM
Long-term archiving on: : Friday, June 4, 2010 - 11:26:43 AM

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  • HAL Id : inria-00321983, version 1

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Maxime Tournier, Xiaomao Wu, Nicolas Courty, Élise Arnaud, Lionel Reveret. Motion Compression using Principal Geodesics Analysis. [Research Report] RR-6648, INRIA. 2008, pp.24. ⟨inria-00321983⟩

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