3D FACE MODELING - 3D Face Processing: Modeling, Analysis and Synthesis - page 14

Rational B-Splines (NURBS) model which has 63 control points. The generic
face model is illustrated in Figure 2.1.
2.2 Personalized face model
In iFACE, the process of making a personalized face model is nearly auto-
matic with only a few manual adjustments necessary. To customize the face
model for a particular person, we first obtain both the texture data and range data
of that person by scanning his/her head using Cyberware TM range scanner.
An example of the range scanner data is shown in Figure 2.2.
Figure 2.2. An example of range scanner data. (a): Range map. (b): Texture map.
Figure 2.3. Feature points defined on texture map.
We define thirty-five facial feature points on the face surface of the generic
head model. If we unfold the face component of the head model onto 2D,
those feature points triangulate the face mesh into several local patches. The
2D locations of the feature points in the range map are manually selected on
the scanned texture data, which are shown in Figure 2.3. The system calculates