Matching of curvilinear structures : application to the identification of cortical sulci on 3D Magnetic Resonance Brain Image
Résumé
Positron Emission Tomography (PET) is a non-invasive imaging technique that provides quantitative maps of biochemical, biophysical and physiological parameters of the in-vivo human brain. Conversely, Magnetic Resonance Imaging offers accurate in-vivo localisation of anatomical landmarks. It has been used to estimate individual variations and left-right asymmetries of sulci and gyri. Hence, it is of great interest to superimpose functional PET data and anatomical MRI data. There are three modern approaches to this problem. Our work is based on this one : determination of cortical maps based on the topology of sulci and gyri. Our objective is to automatically recognize cortical sulci of any brain MRI examination, with respect to an anatomical atlas. The deformations of the sulci can be computed. In this paper, we deal with the identification of the lateral sulcus (Sylvian fissure) on 3D MR Images.
Domaines
Traitement des images [eess.IV]
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