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Pose Estimation For A Partially Observable Human Body From RGB-D Cameras

Abdallah Dib 1, 2 François Charpillet 2, 1 
Abstract : Human pose estimation in realistic world conditions raises multiple challenges such as foreground extraction, background update and occlusion by scene objects. Most of existing approaches were demonstrated in controlled environments. In this paper, we propose a framework to improve the performance of existing tracking methods to cope with these problems. To this end, a robust and scalable framework is provided composed of three main stages. In the first one, a probabilistic occupancy grid updated with a Hidden Markov Model used to maintain an up-to-date background and to extract moving persons. The second stage uses component labelling to identify and track persons in the scene. The last stage uses an hierarchical particle filter to estimate the body pose for each moving person. Occlusions are handled by querying the occupancy grid to identify hidden body parts so that they can be discarded from the pose estimation process. We provide a parallel implementation that runs on CPU and GPU at 4 frames per second. We also validate the approach on our own dataset that consists of synchronized motion capture with a single RGB-D camera data of a person performing actions in challenging situations with severe occlusions generated by scene objects. We make this dataset available online.
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Submitted on : Wednesday, September 23, 2015 - 2:44:53 PM
Last modification on : Monday, July 25, 2022 - 3:44:09 AM
Long-term archiving on: : Tuesday, December 29, 2015 - 9:37:34 AM


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  • HAL Id : hal-01203638, version 1


Abdallah Dib, François Charpillet. Pose Estimation For A Partially Observable Human Body From RGB-D Cameras. IEEE/RJS International Conference on Intelligent Robots and Systems (IROS), Sep 2015, Hamburg, Germany. pp.8. ⟨hal-01203638⟩



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