@conference {cCanton-Ferrer05a, title = {Fusion of multiple viewpoint information towards 3d face robust orientation detection}, booktitle = {IEEE International Conference on Image Processing}, year = {2005}, isbn = {0-7803-9135-7}, author = {Cristian Canton-Ferrer and Cristian Canton-Ferrer and Casas, J. and M. Pard{\`a}s} }