JAGI - Vol 1 Num 1 Article 1

Journal of Australasian Graphics Imagery

Marriott, A.(1992): Face Modelling for Character Animation.

Abstract

The field of computer animation has many facets: architectural walk throughs, flying logos, structural analysis, simulation, character animation.
One important part of character animation is facial animation - often the only vehicle available in a scene for the expressing of emotion. A facial model must be able to supply the visual cues associated with such emotions as fear, happiness, surprise, etc. The level of expressiveness of the model is directly related to the resolution of the model and the ability to control the individual facial features. Any model produced must therefore have enough identifiable control points to produce a recognisable human face with adequate flexibility.
Standard high accuracy Stereo Photogrammetry techniques as well as rough right angle "orthographic" projection techniques were used to digitise a human face. The results of the two methods are compared in the light of the requirements above.
The facial model produced is used for research in character animation at Curtin University of Technology.

It is shown that a high quality facial model with the required level of expressiveness can be digitised at a relatively low cost in terms of resources and time.

Keywords: facial animation digitisation

Number of References: 23

Address:
raytrace@cs.curtin.edu.au or

saila@cs.curtin.edu.au

Department of Computing Science, School of Computing.

Curtin University of Technology, Hayman Rd.

Bentley. Western Australia. 6102

Telephone/Fax: +619 351 7675 / +619 351 2819

Document Components

PostScript document

with images(1,091,438 bytes)

with no images(70,642 bytes)

Figures

Figure 2.1 (70,642 bytes) CyberWare Scan

Figure 2.2 (70,642 bytes) Valerie - our guinea pig

Figure 3.2 (70,642 bytes)Original parke face

Figure 4.1 (70,642 bytes)Digitising program layout

Figure 4.2 (70,642 bytes)Vertex type numbered

Figure 4.3 (70,642 bytes)Vertex type dots

Figure 4.4 (70,642 bytes)Polygon type lines

Figure 4.5 (70,642 bytes)Polygon type shaded

Figure 5.2 (70,642 bytes)Wireframe data

Figure 5.3 (70,642 bytes)Solid data

Figure 5.7 (147,114 bytes)Resulting face

Figure 5.8 (147,114 bytes)The wireframe face

Figure 6.1 (147,114 bytes)Graphical user interface of fax

Figure 6.2 (147,114 bytes)controls of fax

Figure 6.3 (147,114 bytes)Play controls of fax

Figure 6.4 (147,114 bytes)Record controls of fax

Figure 6.5 (147,114 bytes)Keyframe controls of fax

Movie

Movie 1 (147,114 bytes)Facial Animation

Software

facesave - Source code for facial model creation.

fascia - Source code for Parke facial model.