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

Table 5

Perceived quality comparison between our method and DSD (unit: 10⁻¹).

Triangles	DSD	Our method	Improvement rate
5000	2.4633	1.7413	29.31%
2000	3.2981	2.2074	33.07%
1000	4.0961	2.5682	37.30%
500	4.6055	3.0275	34.26%