Capturing and animating skin deformation in human motion
ACM SIGGRAPH 2006 Papers
Generation of expression space for realtime facial expression control of 3D avatar
MIRAGE'07 Proceedings of the 3rd international conference on Computer vision/computer graphics collaboration techniques
An interactive 3D video system for human facial reconstruction and expression modeling
Journal of Visual Communication and Image Representation
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A facial gesture analysis procedure is presented for the control of animated faces. Facial images are partitioned into a set of local, independently actuated regions of appearance change termed co-articulation regions (CRs). Each CR is parameterized by the activation level of a set of face gestures that affect the region. The activation of a CR is analyzed using independent component analysis (ICA) on a set of training images acquired from an actor. Gesture intensity classification is performed in ICA space by correlation to training samples. Correlation in ICA space proves to be an efficient and stable method for gesture intensity classification with limited training data. A discrete sample-based synthesis method is also presented. An artist creates an actor-independent reconstruction sample database that is indexed with CR state information analyzed in real time from video. Copyright © 2004 John Wiley & Sons, Ltd.