A Fully Parallel Algorithm for Multimodal Image Registration Using Normalized Gradient Fields

Jan Rühaak, Lars König, Marc Hallmann, Nils Papenberg, Stefan Heldmann, Hanno Schumacher, Bernd Fischer

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 languageEnglish
Title of host publication2013 IEEE 10th International Symposium on Biomedical Imaging
Number of pages4
Place of PublicationSan Francisco, California, USA
PublisherIEEE
Publication date01.04.2013
Pages572-575
ISBN (Print)978-1-4673-6456-0
ISBN (Electronic)978-1-4673-6455-3
DOIs
Publication statusPublished - 01.04.2013
Event2013 IEEE 10th International Symposium on Biomedical Imaging - San Francisco, United States
Duration: 07.04.201411.04.2014

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