We propose a new facial motion retargetting method using wavelet-based multiresolutional analysis of triangular meshes. We
define the displacement of the source model as the difference between the neutral and the current expressions of the source
model, and decompose it to the displacement of the base mesh and the “displacements” of the wavelet coefficients. We compute
the wavelet coefficients of a mesh by using the wavelet basis functions derived from a mesh subdivision scheme. To get the
motion of the target model, we add the displacement of the source model to the target model level by level starting from the
base mesh. The wavelet-based representation of mesh facilitates the comparison between two expressions of the same model and
the comparison between the expressions of the source and target models.