Segmentation of NMR Slices and 3D Modeling of Temporomandibular Joint

0336695 - ÚPT 2010 RIV US eng C - Conference Paper (international conference)
Mikulka, J. - Gescheidtová, E. - Bartušek, Karel
Segmentation of NMR Slices and 3D Modeling of Temporomandibular Joint.
PIERS 2009 Beijing: Progess in Electromagnetics Research Symposium - Proceedings. Cambridge: Electromagnetic Academy, 2009 - (Kong, J.), s. 160-164. ISBN 978-1-934142-08-0. ISSN 1559-9450.
[Progress in Electromagnetics Research Symposium 2009 Beijing. Beijing (CN), 23.04.2009-27.04.2009]
R&D Projects: GA ČR(CZ) GA102/07/1086; GA ČR(CZ) GA102/07/0389
Institutional research plan: CEZ:AV0Z20650511
Keywords : NMR Slices * 3D Modeling * Temporomandibular Joint
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

The paper describes the pre-processing and subsequent segmentation of NMR images of the human head in the region of temporomandibular joint in several slices. Image obtained by means of the tomograph used axe of very low resolution and contrast, and their processing may prove to be difficult. A suitable algorithm was found, which consists in preprocessing the image by a smoothing filter, sharpening, and the four-phase level set segmentation. This method segments the image on the basis of the intensity of regions and is thus suitable for processing the above-mentioned NMR images, in which there axe no sharp edges. The method also has some filtering capability. It is described by partial differential equations that have been transformed into corresponding difference equations, which are solved numerically. In the next stage, segmented slices of temporomandibular joint will be used to create a multidimensional model.
Permanent Link: http://hdl.handle.net/11104/0180877