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

<div>This method calculates the shape operator value of each vertex point in every expression model and takes the maximum value as the eigenvalue for appearance analysis of facial animation.</div>

Mathematical Problems in Engineering

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Figure 9

Figure 9: An Improved Surface Simplification Method for Facial Expression Animation Based on Homogeneous Coordinate Transformation Matrix and Maximum Shape Operator 

Figure 9 | An Improved Surface Simplification Method for Facial Expression Animation Based on Homogeneous Coordinate Transformation Matrix and Maximum Shape Operator 