Rendering the Unfolded Cerebral Cortex

Classical volume rendering is computed by casting a bundle of parallel rays from a flat viewing plane onto the volume data set, and produces as such a spatially limited view of the objects in the data set. The method described in this paper is able to generate an overall planar view of an object that is topologically compatible with the sphere, by firing rays from a nearby surrounding surface and by unfolding this surface in a 2D plane, without introducing major distortions. It has been devised to facilitate the interpretation of the cerebral cortex. An initial surface consisting of two hemi-ellipsoids, one to cover the top and another one to surround the bottom of the brain, is interactively defined and deformed via a deformable model approach towards a dilated version of the cortical surface of the brain. During deformation, the nodes on the surface are continuously redistributed, to maintain a near homothetic mapping with the plane. Once the surface has converged to the dilated brai...

• Type: Conference
• Year: 1999
• Where: MICCAI
• Authors: Junfeng Guo, Ioan Alexandru Salomie, Rudi Deklerck, Jan Cornelis
• Keywords: Brain Surface, Flat Viewing Plane, Medical Imaging, MICCAI 1999, Nearby Surrounding Surface