An Improved Surface Simplification Method for Facial Expression Animation Based on Homogeneous Coordinate Transformation Matrix and Maximum Shape Operator

Table 4

Average RMS error comparison between our method and FEQ (unit: 10⁻²).

Triangles	The FEQ	Our method	Improvement rate
5000	1.2658	1.2092	4.47%
2000	2.7134	2.4207	10.79%
1000	5.2143	3.7969	27.18%
500	10.6767	6.2438	41.52%