Silhouette based human motion estimation
 @InProceedings{rosenhahn04dagm,
  author = 	 {B. Rosenhahn and R. Klette and G. Sommer},
  title = 	 {Silhouette based human motion estimation},
  booktitle =	 {Pattern Recognition 2004, 26th DAGM-Symposium, Tübingen, Germany},
  pages =	 {294-301},
  year =	 2004,
  editor =	 {C.E. Rasmussen and H.H. Bülthoff and M.A. Giese and B. Schölkopf},
  volume =	 3175,
  series =	 {LNCS},
  publisher =	 {Springer-Verlag, Berlin Heidelberg}
}