Patent ID: 8855386

Claim:
A method to register retinal images, the method comprising: dividing a first retinal image acquired at a first optical wavelength into first image portions; dividing a second retinal image acquired at a second optical wavelength into second image portions, each second image portion having a corresponding first image portion; determining a deformation vector for each second image portion with respect to its corresponding first image portion; identifying second image portions that have a deformation vector that fails a pre-determined criteria, to obtain identified second image portions; calculating, for each identified second image portion, an interpolated deformation vector in accordance with deformation vectors of neighbour second image portions; substituting, for each identified second image portion, its deformation vector with its corresponding interpolated deformation vector; and registering second image portions to their corresponding first image portions in accordance with deformation vectors that pass the pre-determined criteria and in accordance the interpolated deformation vectors.