C. Stauffer, W. E. Grimson, ]. A. Elgammal, D. Harwood, L. Davis et al., ?Non-parametric model for background subtraction,? Computer ?Real-time foreground? background segmentation using codebook model, Proceedings. 1999 IEEE Computer Society Conference on Computer Vision and Pattern Recognition El Baf, and B. Vachon, ?Background Modeling using Mixture of Gaussians for Foreground Detection -A Survey,? Recent Patents on Computer Science Gordon, and J. Woodfill, ?Foreground segmentation using adaptive mixture models in color and depth,? Proceedings IEEE Workshop on Detection and Recognition of Events in Video, pp.246-252, 2000.

A. Prati, I. Mikic, and R. Cucchiara, ?Comparative evaluation of moving shadow detection algorithms,? on Empirical Evaluation ?A Framework for High-Level Feedback to Adaptive, Per-Pixel, Mixture-of- Gaussian Background Models,? Framework, pp.1-18, 2001.

H. Nait-charif, Activity summarisation and fall detection in a supportive home environment, Proceedings of the 17th International Conference on Pattern Recognition, 2004. ICPR 2004., pp.323-326, 2004.
DOI : 10.1109/ICPR.2004.1333768

G. Wu, Distinguishing fall activities from normal activities by velocity characteristics, Journal of Biomechanics, vol.33, issue.11, pp.1497-500, 2000.
DOI : 10.1016/S0021-9290(00)00117-2

C. Rougier, J. Meunier-nummiaro, E. Koller-meier, and L. Van-gool, ?3D head trajectory using a single camera [11] M. Isard and A. Blake, ?CONDENSATION ? Conditional Density Propagation for Visual Tracking, Image and Signal Processing International Journal of Computer Vision Image and Vision Computing, vol.31213, issue.21 1, pp.505-512, 1998.

J. Deutscher, I. Blake, and . Reid, Articulated body motion capture by annealed particle filtering, Proceedings IEEE Conference on Computer Vision and Pattern Recognition. CVPR 2000 (Cat. No.PR00662), pp.126-133, 2000.
DOI : 10.1109/CVPR.2000.854758

P. Kaewtrakulpong and R. Bowden, An Improved Adaptive Background Mixture Model for Real-time Tracking with Shadow Detection, Proc. European Workshop Advanced Video Based Surveillance Systems, pp.1-5, 2001.
DOI : 10.1007/978-1-4615-0913-4_11