dc.citation.conferencePlace |
NE |
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dc.citation.conferencePlace |
Rotterdam, The Netherlands |
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dc.citation.endPage |
1224 |
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dc.citation.startPage |
1221 |
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dc.citation.title |
7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 |
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dc.contributor.author |
Chun, Se Young |
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dc.contributor.author |
Fessler, Jeffrey A. |
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dc.contributor.author |
Schretter, Colas |
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dc.date.accessioned |
2023-12-20T03:38:30Z |
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dc.date.available |
2023-12-20T03:38:30Z |
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dc.date.created |
2014-12-23 |
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dc.date.issued |
2010-04-17 |
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dc.description.abstract |
Recent advances in medical imaging technologies have made 4D image sequences available in clinical routine. As a consequence, image registration techniques are evolving from alignment of pairs of static volumetric images to spatiotemporal registration of dynamic (4D) images. Since the elastic image registration problem is ill-posed, additional prior information or constraints are usually required to regularize the problem. This work proposes to enforce local invertibility (diffeomorphism) of 4D deformations. A novel sufficient condition for local invertibility over continuous space and time is proposed and a practical regularization prior is designed from the theory. The method has been applied to an image registration (motion tracking) of a dynamic 4D CT image sequence. Results show that using proposed regularizer leads to deformations that are more plausible for respiratory motion than the standard approach without additional temporal regularization. |
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dc.identifier.bibliographicCitation |
7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010, pp.1221 - 1224 |
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dc.identifier.doi |
10.1109/ISBI.2010.5490215 |
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dc.identifier.scopusid |
2-s2.0-77955215861 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/46831 |
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dc.identifier.url |
https://ieeexplore.ieee.org/document/5490215 |
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dc.language |
영어 |
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dc.publisher |
7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 |
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dc.title |
Sufficient condition for local invertibility of spatio-temporal 4D B-spline deformations |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2010-04-14 |
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