Title :
Nested uniform sampling for multiresolution 3-D tomography
Author :
Ahmad, Rizwan ; Kuppusamy, Periannan ; Potter, Lee C.
Author_Institution :
Dept. of Internal Med., Ohio State Univ., Columbus, OH, USA
Abstract :
A nested uniform sampling over the sphere is presented. The set of sampling points contains a sequence of nested subsets, each providing an approximately uniform covering of the sphere. The proposed Matryoshka covering of the sphere allows multiresolution 3-D imaging. Simulation and electron paramagnetic resonance imaging results illustrate its application to 3-D tomography.
Keywords :
EPR imaging; biomedical MRI; computerised tomography; image reconstruction; image resolution; medical image processing; sampling methods; Matryoshka covering; electron paramagnetic resonance imaging; multiresolution 3-D imaging; multiresolution 3-D tomography; nested uniform sampling; tomographic reconstruction; Biomedical imaging; Biomedical measurements; Electrons; Energy resolution; Image reconstruction; Paramagnetic resonance; Sampling methods; Sequences; Solids; Tomography; 3-D tomography; Fekete points; Radon inversion; binning spherical codes; progressive sampling;
Conference_Titel :
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
978-1-4244-4295-9
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2010.5495713
