Figure 11

The similarity measurement for the sentence: I want to divide the talcum powder into two piles. (a) shows the appearance similarity, (b) shows the mouth movement similarity. The red curve is the PCA parameter trajectory and the mouth movement of the real sequence; the blue curve is the PCA parameter trajectory and mouth movement of the animated sequence. The cross-correlation coefficient of PCA parameters between the real and animated sequence is 0.88, the coefficient for mouth height is 0.74. The mouth height is defined as the maximal top to bottom distance of the outer lip contour.Trajectory of the first PCA weightTrajectory of mouth height of real and animated sequences