Spectral surface deformation with dual mesh

In this paper, we introduce a new surface defor-mation algorithm by combining the spectral method with the dual Laplacian editing algorithm. The dual Laplacian editing algorithm tries to maintain the Laplacian coordinates of all the vertices before and after deformation in dual space as much as possible. By using an iteration process, the local rotational effects can be achieved to get very natural results. In our new algorithm, we exploit manifold harmonics to perform the dual Laplacian editing in frequency domain. By using a small number of frequencies, the size of the linear system in each iteration is greatly decreased, and thus the speed is increased accordingly. Our experiments shows that our algorithm is particu-larly suitable for large meshes, and the speed of our algorithm is much faster than the spatial counterpart