Papers relevant to the general tracking-in-video problem.

General
 Pece, Arthur E.C., "The Kalman-EM Contour Tracker", Sept 21, 2003 [pdf]

 Okuma, K., Little, J. J., Lowe, D. G., "Automatic Rectification of Long Image Sequences", ACCV'04? [pdf]

 McKenna, S. J., Jabri, S., Duric, Z., Wechsler, H., Rosenfeld, A., "Tracking Groups of People" [pdf]

 Bretzner, L., "Multi-Scale Feature Tracking and Motion Estimation" [pdf]

 Mitiche, A., Feghali, R., Mansouri, A., "Motion tracking as spatio-temporal motion boundary detection", Robotics and Autonomous Systems 43, 2003, p.39-50 [pdf]

 Yi, H., Rajan, D., Chia, L.-T., "Automatic Generation of MPEG-7 Compliant XML Document for Motion Trajectory Descriptor in Sports Video" [pdf]

 Yi, H., Rajan, D., Chia, L.-T., "A new motion histogram to index motion content in video segments", Patterm Recognition Letters, 2004 [pdf]

 Ok, H.-W., Seo, Y., Hong, K.-S., "Multiple Soccer Players Tracking by Condensation with Occlusion Alarm Probability" [pdf]