1. A method for reconstructing imaging signals in a biological medium on the basis of experimental measurements perturbed by movements, comprising: implementing measurements representative of said movements; at least one movement model comprising movement parameters capable of describing movements and/or deformations of the biological medium on the basis of said measurements representative of movements and an imaging sampling grid, the points of which being used for reconstructing the imaging signal; constructing a movement sampling grid by selecting a limited set of points from the imaging sampling grid, the points selected for constructing the movement sampling grid being chosen using a criterion constructed as a function of the movement parameters of a preliminary estimation of the at least one movement model, so that the points of the movement sampling grid are close to areas of the biological medium affected by comparatively greater movement variations and/or local deformations; and calculating the movement parameters of each movement model by inversion of a linear system at the points of said movement sampling grid.