Real-time tracking of moving objects with an active camera
@Article{dani96realtime,
  author = 	 {K. Daniilidis and Ch. Krauss and M. Hansen and G. Sommer},
  title = 	 {Real-time tracking of moving objects with an active
                  camera},
  journal = 	 {Journal of Real Time Imaging, 4},
  year = 	 1998,
  volume =       1,
  pages =        {3-20},
  }