Symmetrization of the Non-rigid Registration Problem Using Inversion-Invariant Energies: Application to Multiple Sclerosis

@inproceedings{Cathier2000SymmetrizationOT,
  title={Symmetrization of the Non-rigid Registration Problem Using Inversion-Invariant Energies: Application to Multiple Sclerosis},
  author={Pascal Cathier and David Rey},
  booktitle={MICCAI},
  year={2000}
}
Without any prior knowledge, the non-rigid registration of two images is a symmetric problem, i.e. we expect to nd inverse results if we exchange these images. This symmetry is nonetheless broken in most of intensity-based algorithms. In this paper, we explain the reasons why most non-rigid registration algorithms are asymmetric. We show that the asymmetry of quadratic regularization energies causes an oversmoothing of expending regions relatively to shrinking regions, hampering in particular… CONTINUE READING
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