DocumentCode :
3632819
Title :
Animatable face models from uncalibrated input pictures
Author :
M. Fratarcangeli;M. Andolfi;K. Stankovic;I.S. Pandzic
Author_Institution :
University of Rome ?LaSapienza?, Department of Computer and Systems Science, Italy
fYear :
2009
fDate :
6/1/2009 12:00:00 AM
Firstpage :
177
Lastpage :
184
Abstract :
In networked virtual environments, videoconferences or chatting over the Internet users are often graphically represented by virtual characters. Modeling realistic virtual heads of users suitable for animation implies a heavy artistic effort and resource cost. This paper introduces a system that generates a 3D model of a real human head with a little human intervention. The system receives five input orthogonal photographs of the human head and a generic template 3D model. It requires manual annotation of 94 feature points on each photograph. The same set of feature points must be selected on the template model in a preprocessing step that is done only once. Computing process consists of two phases: a morphing and a coloring phase. In the morphing phase the template model is morphed in two steps using a radial basis function (RBF) to take a shape similar to the shape of the real human head. In the coloring phase the deformed model is colored using the input photographs based on a cubemap projection, which leads to a realistic appearance of the model while allowing for a real time performance. We show the use of the output model by automatically copying facial motions from the template model to the deformed model, while preserving the compliance of the motion to the MPEG-4 FBA standard.
Keywords :
"Facial animation","Humans","Deformable models","Head","Face","Principal component analysis","Image databases","Spatial databases","Active shape model","Computer networks"
Publisher :
ieee
Conference_Titel :
Telecommunications, 2009. ConTEL 2009. 10th International Conference on
Print_ISBN :
978-953-184-130-6
Type :
conf
Filename :
5206360
Link To Document :
بازگشت