Marco Fratarcangeli - Computational Models for automatic 3D facial animation
Talare: Assistant professor Marco Fratarcangeli, the Department of Computer, Control, and Management Engineering at Sapienza University of Rome, Italy
Tid: Tors 12/9, kl 13:00-14
Plats: VR-arenan, Kopparhammaren
Interactive synthesis of facial animation in Computer Graphics is a challenging task and although the problem is three decades old by now, there is still not a unified method to solve it. This is mainly due to the complex mathematical model required to reproduce the visual meanings of facial expressions coupled with the computational speed needed to run interactive applications. We propose two different methods to address the problem of the realistic animation of 3D virtual faces at interactive rate. The first method is an integrated anatomically-based method which mimics the facial movements by reproducing the musculoskeletal structure of a human head and the interaction among the bony structure, the facial muscles and the skin. The dynamics of the face motion is computed through a position-based schema ensuring real-time performance, control and robustness. Experiments demonstrate that through this model it is possible to effectively synthesize realistic expressive facial animation on different input face models in real-time on consumer class platforms. The second method consists of a novel facial motion cloning technique. This is a purely geometric algorithm and it is able to transfer the motion from an animated source face to a different target face mesh, initially static, allowing to reuse facial motion from already animated virtual heads. Its robustness and flexibility are assessed over several input data sets.
Marco Fratarcangeli is an assistant professor at the Department of Computer, Control, and Management Engineering at Sapienza University of Rome, Italy, where he is a member of the Computer Graphics, Vision e Perception group from 2012. His research interests focus on physically-based simulation of deforming bodies, GPGPU computing, and efficient face and body animation algorithms for virtual characters. He received his MSc (Laurea) in 2003 in Computer Engineering and his PhD in 2009 in the field of physically-based animation of virtual faces. Between 2004 and 2006, he was a visiting researcher at the Information Coding Group at the Linköping University, Sweden. From 2008 to 2011, he worked as technical lead at a SME in the aerospatial industry, leading the developmnet projects aimed mainly to the European Space Agency.
Senast uppdaterad: Tue Sep 10 14:39:39 CEST 2013