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Título: | Lie algebra-based kinematic prior for 3D human pose tracking |
Autor: | Simo-Serra, Edgar CSIC; Torras, Carme CSIC ORCID ; Moreno-Noguer, Francesc CSIC ORCID | Fecha de publicación: | 2015 | Citación: | IAPR International Conference on Machine Vision Applications (2015) | Resumen: | We propose a novel kinematic prior for 3D human pose tracking that allows predicting the position in subsequent frames given the current position. We first define a Riemannian manifold that models the pose and extend it with its Lie algebra to also be able to represent the kinematics. We then learn a joint Gaussian mixture model of both the human pose and the kinematics on this manifold. Finally by conditioning the kinematics on the pose we are able to obtain a distribution of poses for subsequent frames that which can be used as a reliable prior in 3D human pose tracking. Our model scales well to large amounts of data and can be sampled at over 100,000 samples/second. We show it outperforms the widely used Gaussian diffusion model on the challenging Human3.6M dataset. | Descripción: | Trabajo presentado a la IAPR International Conference on Machine Vision Applications (MVA) celebrada en Tokyo (Japón) del 18 al 22 de mayo de 2015. | URI: | http://hdl.handle.net/10261/133132 |
Aparece en las colecciones: | (IRII) Comunicaciones congresos |
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posetracking.pdf | 243,7 kB | Adobe PDF | Visualizar/Abrir |
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