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Authors: Paul Kuo ; Thibault Ammar ; Michal Lewandowski ; Dimitrios Makris and Jean-Christophe Nebel

Affiliation: Digital Imaging Research Centre, Kingston University, United Kingdom

Keyword(s): 3D pose recovery, Orthographic projection, Pin-hole camera model, Camera auto-calibration, Biomechanics.

Abstract: A new method is proposed for recovering 3D human poses in video sequences taken from a single uncalibrated camera. This is achieved by exploiting two important constraints observed from human bipedal motion: coplanarity of body key points during the mid-stance position and the presence of a foot on the ground – i.e. static foot - during most activities. Assuming 2D joint locations have been extracted from a video sequence, the algorithm is able to perform camera auto-calibration on specific frames when the human body adopts particular postures. Then, a simplified pin-hole camera model is used to perform 3D pose reconstruction on the calibrated frames. Finally, the static foot constraint which is found in most human bipedal motions is applied to infer body postures for non-calibrated frames. We compared our method with (1) “orthographic reconstruction” method and (2) reconstruction using manually calibrated data. The results validate the assumptions made for the simplified pin-hole ca mera model and reconstruction results reveal a significant improvement over the orthographic reconstruction method. (More)

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Paper citation in several formats:
Kuo, P.; Ammar, T.; Lewandowski, M.; Makris, D. and Nebel, J. (2009). EXPLOITING HUMAN BIPEDAL MOTION CONSTRAINTS FOR 3D POSE RECOVERY FROM A SINGLE UNCALIBRATED CAMERA . In Proceedings of the Fourth International Conference on Computer Vision Theory and Applications (VISIGRAPP 2009) - Volume 1: VISAPP; ISBN 978-989-8111-69-2; ISSN 2184-4321, SciTePress, pages 557-564. DOI: 10.5220/0001821305570564

@conference{visapp09,
author={Paul Kuo. and Thibault Ammar. and Michal Lewandowski. and Dimitrios Makris. and Jean{-}Christophe Nebel.},
title={EXPLOITING HUMAN BIPEDAL MOTION CONSTRAINTS FOR 3D POSE RECOVERY FROM A SINGLE UNCALIBRATED CAMERA },
booktitle={Proceedings of the Fourth International Conference on Computer Vision Theory and Applications (VISIGRAPP 2009) - Volume 1: VISAPP},
year={2009},
pages={557-564},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001821305570564},
isbn={978-989-8111-69-2},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the Fourth International Conference on Computer Vision Theory and Applications (VISIGRAPP 2009) - Volume 1: VISAPP
TI - EXPLOITING HUMAN BIPEDAL MOTION CONSTRAINTS FOR 3D POSE RECOVERY FROM A SINGLE UNCALIBRATED CAMERA
SN - 978-989-8111-69-2
IS - 2184-4321
AU - Kuo, P.
AU - Ammar, T.
AU - Lewandowski, M.
AU - Makris, D.
AU - Nebel, J.
PY - 2009
SP - 557
EP - 564
DO - 10.5220/0001821305570564
PB - SciTePress