Progress in Pattern Recognition, Image Analysis and Applications 9th Iberoamerican Congress on Pattern Recognition, CIARP 2004, Puebla, Mexico, October 26-29, 2004. Proceedings - Sanfeliu, Alberto; Sanfeliu, Alberto; Martínez Trinidad, José F.; Martínez Trinidad, José F.; Carrasco Ochoa, Jesús A.; Carrasco Ochoa, Jesús A. (Springer Berlin Heidelberg : Imprint: Springer, 2004)