According to the guide of the program Facegen, we took three pictures
of the model as we can see in Figure 3. Facegen makes usage
of the inherent symmetry of the human face and provides a rich set
of general face models to fit in. By taking three proper pictures and
tune the parameters carefully, we finally got the 3D model shown
below. This model might not be exactly same as the groundtruth,
but looks acceptable.
Figure