Title :
3D saddle point detection and applications in cardiac imaging
Author :
Fuster, A. ; van Pelt, R.F.P. ; Fick, R.H.J. ; Claassen, G. ; Romeny, B. M ter Haar ; van Assen, H.C. ; Florack, L.M.J.
Author_Institution :
Dept. of Math. & Comput. Sci., Eindhoven Univ. of Technol., Eindhoven, Netherlands
Abstract :
We investigate saddle points in 3D cardiac images. We do so by improving a critical point detection algorithm, the 3D winding number, or Poincaré index. We consider two different applications. We estimate cardiac motion from 3D tagged MRI data, based on tracking of saddle points. We also employ our method for saddle point extraction in blood flow data, acquired by phase contrast MRI.
Keywords :
biomedical MRI; blood flow measurement; cardiology; medical image processing; 3D cardiac image saddle points; 3D saddle point detection; 3D tagged MRI data; 3D winding number; Poincare index; blood flow data; cardiac imaging; cardiac motion estimation; critical point detection algorithm; phase contrast MRI; saddle point extraction; saddle point tracking; Biomedical imaging; Blood; Magnetic resonance imaging; Noise; Vectors; Windings; Poincaré index; phase contrast MRI; saddle points; tagged MRI; winding number;
Conference_Titel :
Biomedical Imaging (ISBI), 2012 9th IEEE International Symposium on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4577-1857-1
DOI :
10.1109/ISBI.2012.6235671
