The invention relates to a method for estimating the motion between two digital
images and to the use of this method for coding images. The aim of the method is
to eliminate the disturbances caused by the mesh being overturned during the motion
estimation process. According to the invention, the method consists of carrying
out a first motion estimation in order to identify the faulty mesh, i.e. the mesh
that is overturning or is overlapping after the displacement vectors have been
applied; then carrying out a second motion estimation, excluding at least said
faulty mesh, in order to minimize prediction error on the remaining mesh of the model.