Abstract
We present a super fast variational algorithm for the challenging problem of multimodal image registration. It is capable of registering full-body CT and PET images in about a second on a standard CPU with virtually no memory requirements. The algorithm is founded on a Gauss-Newton optimization scheme with specifically tailored, mathematically optimized computations for objective function and derivatives. It is fully parallelized and perfectly scalable, thus directly suitable for usage in many-core environments. The accuracy of our method was tested on 21 PET-CT scan pairs from clinical routine. The method was able to correct random distortions in the range from -10 cm to 10 cm translation and from -15° to 15° degree rotation to subvoxel accuracy. In addition, it exhibits excellent robustness to noise.
| Original language | English |
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| Title of host publication | 2013 IEEE 10th International Symposium on Biomedical Imaging |
| Number of pages | 4 |
| Place of Publication | San Francisco, California, USA |
| Publisher | IEEE |
| Publication date | 01.04.2013 |
| Pages | 572-575 |
| ISBN (Print) | 978-1-4673-6456-0 |
| ISBN (Electronic) | 978-1-4673-6455-3 |
| DOIs | |
| Publication status | Published - 01.04.2013 |
| Event | 2013 IEEE 10th International Symposium on Biomedical Imaging - San Francisco, United States Duration: 07.04.2014 → 11.04.2014 |