To obtain 3D non-rigid projective reconstruction from an image sequence

an iteration projection reconstruction method for 3D non-rigid based on minimal eigenvalue is presented.Based on the characteristic that all the image points and the depth factors constitute a low rank image matrix

the method replaces projection solution by eigenvalue and eigenvector solution.Then we can obtain the depth factors by iteration.Finally

the 3D non-rigid projective reconstruction is realized.The method can guarantee to converge to the global optimal solution.The experiments with both simulate and real data show that the proposed method has the advantages of fast convergence speed and small error.