Non Rigid Registration of Diffusion Tensor Images - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Rapport (Rapport De Recherche) Année : 2007

Non Rigid Registration of Diffusion Tensor Images

Olivier Faugeras
Théodore Papadopoulo
Rachid Deriche
  • Fonction : Auteur
  • PersonId : 943743

Résumé

We propose a novel variational framework for the dense non-rigid registration of Diffusion Tensor Images (DTI). Our approach relies on the differential geometrical properties of the Riemannian manifold of multivariate normal distributions endowed with the metric derived from the Fisher information matrix. The availability of closed form expressions for the geodesics and the Christoffel symbols allows us to define statistical quantities and to perform the parallel transport of tangent vectors in this space. We propose a matching energy that aims to minimize the difference in the local statistical content (means and covariance matrices) of two DT images through a gradient descent procedure. The result of the algorithm is a dense vector field that can be used to wrap the source image into the target image. This article is essentially a mathematical study of the registration problem. Some numerical experiments are provided as a proof of concept.
Fichier principal
Vignette du fichier
RR-6104.pdf (1.7 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

inria-00125876 , version 1 (22-01-2007)
inria-00125876 , version 2 (23-01-2007)

Identifiants

  • HAL Id : inria-00125876 , version 2

Citer

Olivier Faugeras, Christophe Lenglet, Théodore Papadopoulo, Rachid Deriche. Non Rigid Registration of Diffusion Tensor Images. [Research Report] RR-6104, INRIA. 2007, pp.39. ⟨inria-00125876v2⟩
283 Consultations
159 Téléchargements

Partager

Gmail Facebook X LinkedIn More