Title :
Evaluation of multiplexing in multi-pinhole SPECT
Author :
Jorgensen, Aaron K. ; Zeng, Gengsheng L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Utah Univ., Salt Lake City, UT, USA
Abstract :
Current methods of evaluation of multi-pinhole SPECT imaging systems are limited to analyses of small numbers of experiments or simulations. The authors propose an objective evaluation method based on the singular-value decomposition of the projection-backprojection operation. The decomposition is performed using the power method in order to alleviate the need to store the projection-backprojection matrix in computer memory.
Keywords :
medical image processing; multiplexing; single photon emission computed tomography; singular value decomposition; multipinhole SPECT imaging systems; multiplexing; power method; projection-backprojection operation; singular value decomposition; Apertures; Cities and towns; Computational modeling; Computer errors; High-resolution imaging; Image analysis; Imaging phantoms; Matrix decomposition; Singular value decomposition; Symmetric matrices;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2005 IEEE
Print_ISBN :
0-7803-9221-3
DOI :
10.1109/NSSMIC.2005.1596774
