Fidaleo, DouglasMedioni, GérardFua, PascalLepetit, Vincent2012-06-152012-06-152012-06-15200510.1007/11564386_11https://infoscience.epfl.ch/handle/20.500.14299/81915An Investigation of Model Bias in 3D Face Trackingtext::conference output::conference proceedings::conference paper