An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images
We have developed an algorithm for the rigid-body registration of a CT volume to a set of C-arm images. The algorithm uses a gradient-based iterative minimization of a least-squares measure of dissimilarity between the C-arm images and projections of the CT volume. To compute projections, we use a n...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2006-01-01
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| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/IJBI/2006/47197 |
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| author | S. Jonic P. Thévenaz G. Zheng L.-P. Nolte M. Unser |
| author_facet | S. Jonic P. Thévenaz G. Zheng L.-P. Nolte M. Unser |
| author_sort | S. Jonic |
| collection | DOAJ |
| description | We have developed an algorithm for the rigid-body registration of
a CT volume to a set of C-arm images.
The algorithm uses a gradient-based iterative minimization of a least-squares measure
of dissimilarity between the C-arm images and projections of the
CT volume. To compute projections, we use a novel method for fast
integration of the volume along rays. To improve robustness and
speed, we take advantage of a coarse-to-fine processing of the
volume/image pyramids. To compute the projections of the volume,
the gradient of the dissimilarity measure, and the multiresolution
data pyramids, we use a continuous image/volume model based on
cubic B-splines, which ensures a high interpolation accuracy and a
gradient of the dissimilarity measure that is well defined
everywhere. We show the performance of our algorithm on a human
spine phantom, where the true alignment is determined using a set
of fiducial markers. |
| format | Article |
| id | doaj-art-a1e3eae6cd864d9384f7f821efed053c |
| institution | Kabale University |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-a1e3eae6cd864d9384f7f821efed053c2025-02-03T01:09:07ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962006-01-01200610.1155/IJBI/2006/4719747197An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm ImagesS. Jonic0P. Thévenaz1G. Zheng2L.-P. Nolte3M. Unser4Biomedical Imaging Group, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne VD CH-1015, SwitzerlandBiomedical Imaging Group, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne VD CH-1015, SwitzerlandInstitute for Surgical Technology and Biomechanics, MEM Research Center for Orthopaedic Surgery, University of Bern, Bern CH-3014, SwitzerlandInstitute for Surgical Technology and Biomechanics, MEM Research Center for Orthopaedic Surgery, University of Bern, Bern CH-3014, SwitzerlandBiomedical Imaging Group, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne VD CH-1015, SwitzerlandWe have developed an algorithm for the rigid-body registration of a CT volume to a set of C-arm images. The algorithm uses a gradient-based iterative minimization of a least-squares measure of dissimilarity between the C-arm images and projections of the CT volume. To compute projections, we use a novel method for fast integration of the volume along rays. To improve robustness and speed, we take advantage of a coarse-to-fine processing of the volume/image pyramids. To compute the projections of the volume, the gradient of the dissimilarity measure, and the multiresolution data pyramids, we use a continuous image/volume model based on cubic B-splines, which ensures a high interpolation accuracy and a gradient of the dissimilarity measure that is well defined everywhere. We show the performance of our algorithm on a human spine phantom, where the true alignment is determined using a set of fiducial markers.http://dx.doi.org/10.1155/IJBI/2006/47197 |
| spellingShingle | S. Jonic P. Thévenaz G. Zheng L.-P. Nolte M. Unser An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images International Journal of Biomedical Imaging |
| title | An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images |
| title_full | An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images |
| title_fullStr | An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images |
| title_full_unstemmed | An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images |
| title_short | An Optimized Spline-Based Registration of a 3D CT to a Set of C-Arm Images |
| title_sort | optimized spline based registration of a 3d ct to a set of c arm images |
| url | http://dx.doi.org/10.1155/IJBI/2006/47197 |
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