Constraints on deformable models: recovering 3D shape and nongrid motion
Artificial Intelligence
Robust model-based motion tracking through the integration of search and estimation
International Journal of Computer Vision
Computer facial animation
FaceEngine a 3D facial animation engine for real time applications
Proceedings of the sixth international conference on 3D Web technology
New Human Face Expression Tracking
MIRAGE '09 Proceedings of the 4th International Conference on Computer Vision/Computer Graphics CollaborationTechniques
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In the context of post-production for the movie industry, localization of a 3D face in an image sequence is a topic, with a growing interest. It's not only a face detection (already done!), but an accurate 3D face localization, an accurate face expression recognition, coupled with the localization, allowing to track a real “living” faces (with speech and emotion). To obtain a faithful tracking, the 3D face model has to be very accurate, and the deformation of the face (the behavior model) has to be realistic. In this paper, we present a new easy-to-use face behavior model, and a tracking system based upon image analysis/synthesis collaboration. This tracking algorithm is computing, for each image of a sequence, the 6 parameters of the 3D face model position and rotation, and the 14 behavior parameters (the amount of each behavior in the behavior space). The result is a moving face, in 3D, with speech and emotions which is not discriminable from the image sequence from which it was extracted.