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DC Field | Value | Language |
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dc.citation.endPage | 169 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 159 | - |
dc.citation.title | IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING | - |
dc.citation.volume | 3 | - |
dc.contributor.author | Chun, Se Young | - |
dc.contributor.author | Fessler, Jeffrey A. | - |
dc.date.accessioned | 2023-12-22T08:09:52Z | - |
dc.date.available | 2023-12-22T08:09:52Z | - |
dc.date.created | 2014-10-29 | - |
dc.date.issued | 2009-02 | - |
dc.description.abstract | Non rigid image registration is an important task for many medical imaging applications. In particular, for radiation oncology it is desirable to track respiratory motion for thoracic cancer treatment. B-splines are convenient for modeling nonrigid deformations, but ensuring invertibility can be a challenge. This paper describes sufficient conditions for local invertibility of deformations based on B-spline bases. These sufficient conditions can be used with constrained optimization to enforce local invertibility. We also incorporate these conditions into nonrigid image registration methods based on a simple penalty approach that encourages diffeomorphic deformations. Traditional Jacobian penalty methods penalize negative Jacobian determinant values only at grid points. In contrast, our new method enforces a sufficient condition for invertibility directly on the deformation coefficients to encourage invertibility globally over a 3-D continuous domain. The proposed penalty approach requires substantially less compute time than Jacobian penalties per iteration. | - |
dc.identifier.bibliographicCitation | IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, v.3, no.1, pp.159 - 169 | - |
dc.identifier.doi | 10.1109/JSTSP.2008.2011116 | - |
dc.identifier.issn | 1932-4553 | - |
dc.identifier.scopusid | 2-s2.0-62349142551 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/8006 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=62349142551 | - |
dc.identifier.wosid | 000265495800017 | - |
dc.language | 영어 | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | A Simple Regularizer for B-spline Nonrigid Image Registration That Encourages Local Invertibility | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | B-splines | - |
dc.subject.keywordAuthor | local invertibility sufficient conditions | - |
dc.subject.keywordAuthor | nonrigid image registration |
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dc.subject.keywordAuthor | penalty method | - |
dc.subject.keywordAuthor | thorax CT images | - |
dc.subject.keywordPlus | RESPIRATORY MOTION CORRECTION | - |
dc.subject.keywordPlus | FREE-FORM DEFORMATIONS | - |
dc.subject.keywordPlus | RECONSTRUCTION | - |
dc.subject.keywordPlus | SIGNAL | - |
dc.subject.keywordPlus | PET | - |
dc.subject.keywordPlus | TRANSFORMATIONS | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | CONSTRAINT | - |
dc.subject.keywordPlus | MODELS | - |
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