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Easy acquisition and real‐time animation of facial wrinkles
Author(s) -
Dutreve Ludovic,
Meyer Alexandre,
Bouakaz Sada
Publication year - 2011
Publication title -
computer animation and virtual worlds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.225
H-Index - 49
eISSN - 1546-427X
pISSN - 1546-4261
DOI - 10.1002/cav.395
Subject(s) - computer science , computer facial animation , animation , rendering (computer graphics) , computer graphics (images) , facial expression , facial motion capture , artificial intelligence , computer vision , computer animation , face (sociological concept) , skeletal animation , facial recognition system , face detection , pattern recognition (psychology) , social science , sociology
Facial animation details like wrinkles or bulges are very useful for the analysis and the interpretation of facial emotions and expressions. However, outfitting a virtual face with expression details for real‐time applications is a difficult task. In this paper, we propose a mono‐camera acquisition technique of facial animation details and a technique which add a wrinkle map layer (fine‐scale animation) to a skinning layer (large‐scale animation) for real‐time rendering of a virtual 3D face. The acquisition is based on ratio image computed from two pictures of a same face, with and without expression. The real‐time dynamic wrinkles technique is based on a small set of reference poses. These two methods offer an easy and low‐cost way to capture facial animation details and use it for real‐time facial animation. Copyright © 2011 John Wiley & Sons, Ltd.