A Constraint-Based Approach to Visual Speech for a Mexican-Spanish Talking Head

Figure 9

The spline curve for the result shown in Figure 6(d). The global constraint is set to 0.002, and all range constraints are met. The duration of the speech (horizontal axis) is twice as long as Figure 7. The green circles illustrate the knot spacing of the spline, and the x’s represent the control points. The solid vertical red bars show the range constraints.