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Table 1 Computational complexity ( M N 2 T ) associated with the best accuracies for the cases of full and diagonal covariance matrices

From: A comprehensive system for facial animation of generic 3D head models driven by speech

Cov. matrix structure N M ϵ ρ MN 2 T
      (per frame,T= 1)
Full (proposed) 4 3 0.47 0.75 48
Full (proposed) 7 3 0.48 0.76 147
Diagonal 10 7 0.49 0.75 700
Diagonal 19 3 0.48 0.76 1083
  1. Results associated with the proposed configurations (full covariance matrices) are in bold.