Efficient modeling of virtual humans in MPEG-4

This and the accompanying paper present an overview of the face and body animation object in the MPEG-4 Version 2 standard. The MPEG-4 standard includes the representation, compression of virtual human models and their interface with other MPEG-4 objects, with bit rate requirements as low as 1 Kbit/second. In this paper we give an overview of geometrical modeling techniques for the FBA object, and in the accompanying paper we describe the animation techniques.