Conference paper
Convergence of iterative image reconstruction algorithms for Digital Breast Tomosynthesis
Most iterative image reconstruction algorithms are based on some form of optimization, such as minimization of a data-fidelity term plus an image regularizing penalty term. While achieving the solution of these optimization problems may not directly be clinically relevant, accurate optimization solutions can aid in iterative image reconstruction algorithm design.
This issue is particularly acute for iterative image reconstruction in Digital Breast Tomosynthesis (DBT), where the corresponding data model IS particularly poorly conditioned. The impact of this poor conditioning is that iterative algorithms applied to this system can be slow to converge. Recent developments in first-order algorithms are now beginning to allow for accurate solutions to optimization problems of interest to tomographic imaging in general.
In particular, we investigate an algorithm developed by Chambolle and Pock (2011 J. Math. Imag. Vol. 40, pgs 120-145) and apply it to iterative image reconstruction in DBT.
| Language: | English |
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| Publisher: | IEEE |
| Year: | 2012 |
| Pages: | 3394-3396 |
| Proceedings: | 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference |
| ISBN: | 1467320285 , 9781467320283 , 1467320293 , 1467320307 , 9781467320290 and 9781467320306 |
| ISSN: | 25770829 and 10823654 |
| Types: | Conference paper |
| DOI: | 10.1109/NSSMIC.2012.6551773 |
| ORCIDs: | Jørgensen, Jakob Heide |
DBT biological organs computerised tomography convergence of numerical methods data model digital breast tomosynthesis first-order algorithms image reconstruction image regularizing penalty term iterative image reconstruction algorithm convergence iterative methods medical image processing optimisation optimization problem tomographic imaging
