1. A knowledge-based system for measuring faces;Tock,1990
2. Finding face features;Craw,1992
3. Snakes: active contour models;Kaas;Int. J. Comput. Vision,1987
4. Linking perception and graphics: modelling with dynamic constraints;Witkin,1990
5. Finding image features using deformable templates and detailed prior statistical knowledge;Bennett,1991