1. Batur, A. U., & Hayes, M. H. (2005). Adaptive active appearance models. IEEE Transactions on Medical Imaging, 14(11), 1707–1721.
2. Bergen, J. R., Anandan, P., Hanna, J., & Hingorani, R. (1992). Hierarchical model-based motion estimation. In Proc. European conf. on computer vision (pp. 237–252).
3. Cootes, T. F., & Taylor, C. J. (2001). On representing edge structure for model matching. In Proc. IEEE conf. on comp. vis. and patt. recog.
4. Cootes, T. F., Taylor, C. J., Cooper, D. H., & Graham, J. (1995). Active shape models—their training and application. Computer Vision and Image Understanding, 61(1), 38–59.
5. Cootes, T. F., Edwards, G., & Taylor, C. J. (1998). A comparative evaluation of active appearance model algorithms. In Proc. British machine vision conf.