1. Tracking and Data Association;Bar-Shalom,1988
2. Hierarchical shape fitting using an iterated linear filter;Baumberg;Image Vis. Comput.,1998
3. Active Contours;Blake,1998
4. T.F. Cootes, C.J. Taylor, Statistical models of appearance for computer vision, Technical report, Wolfson Image Anal. Unit, Univ. Manchester, 1999. http://www.isbe.man.ac.uk/~bim/Models/app_models.pdf.
5. Efficient deformable template detection and localization without user initialization;Coughlan;Comput. Vis. Image Understand.,2000