@inproceedings{Zobel02:BTD,
    type = {inproceedings},
    key = {Zobel02:BTD},
    title = {Binocular 3-D Object Tracking with Varying Focal Lengths},
    author = {Matthias Zobel and Joachim Denzler and Heinrich Niemann},
    booktitle = {IASTED International Conference on Signal Processing, Pattern Recognition, and Application},
    year = {2002},
    address = {Anaheim, Calgary, Zurich},
    editor = {Hamza, M.H.},
    pages = {325-330},
    publisher = {ACTA Press},
    abstract = {In this paper we discuss some practical facets of active camera control during 3-D object tracking. The basis of our investigation is an active binocular camera system looking onto a scene to track a moving object in 3-D. Tracking is done in a data driven manner using an extented version of the region based method that was proposed earlier by Hager and Belhumeur. Triangulation of the extracted objects in the two image planes lead to an estimation of the 3-D position of the moving object. To keep the moving object in the center of the image the tilt and vergence axis of the binocular camera system is controlled. The important question for such an experimental setup is which parameters do influence the quality of the final 3-D estimation. The main effects we are concentrating on is the accuracy of the 2-D localization in the image plane depending on the focal length of the camera. Also the consequences of errors in the synchronization between image acquisition and motor control of the camera system are shortly discussed. All considerations are verified in real-time experiments.},
    keywords = {Bild},
}