Rapid Emission Tomography Reconstruction

Thumbnail Image
Date
2003
Authors
Chidlow, Ken
Möller, Torsten
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
We present new implementations of the Maximum Likelihood Expectation Maximization (EM) algorithm and the related Ordered Subset EM (OSEM) algorithm. Our implementation is based on modern graphics hardware and achieves speedups of over eight times current software implementation, while reducing the RAM required to practical amounts for today's PC's. This is significant as it will make this algorithm practical for clinical use. In order to achieve a large speed up, we present bit splitting over different color channels as an accumulation strategy. We also present a novel hardware implementation for volume rendering emission data without loss of accuracy. Improved results are achieved through incorporation of attenuation correction with only a small speed penalty.
Description

        
@inproceedings{
:10.2312/VG/VG03/015-026
,
booktitle = {
Volume Graphics
},
editor = {
I. Fujishiro and K. Mueller and A. Kaufman
},
title = {{
Rapid Emission Tomography Reconstruction
}},
author = {
Chidlow, Ken
 and 
Möller, Torsten
},
year = {
2003
},
publisher = {
The Eurographics Association
},
ISSN = {
1727-8376
},
ISBN = {
1-58113-745-1
},
DOI = {
/10.2312/VG/VG03/015-026
}
}
Citation
URI
https://doi.org/10.2312/VG/VG03/015-026
Collections
VG03: Third International Workshop on Volume Graphics 2003