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Titolo: Consistent image registration
Autore: Christensen, GE; Johnson, HJ;
- Indirizzi:
- Univ Iowa, Dept Elect & Comp Engn, Iowa City, IA 52242 USA Univ Iowa IowaCity IA USA 52242 ect & Comp Engn, Iowa City, IA 52242 USA
- Titolo Testata:
- IEEE TRANSACTIONS ON MEDICAL IMAGING
fascicolo: 7,
volume: 20,
anno: 2001,
pagine: 568 - 582
- SICI:
- 0278-0062(200107)20:7<568:CIR>2.0.ZU;2-N
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- BRAIN; VALIDATION; PET;
- Keywords:
- correspondence; deformable templates; image registration; inverse transformation;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Clinical Medicine
- Engineering, Computing & Technology
- Citazioni:
- 32
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Christensen, GE Univ Iowa, Dept Elect & Comp Engn, 205 CC, Iowa City, IA 52242 USA Univ Iowa 205 CC Iowa City IA USA 52242 City, IA 52242 USA
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- Citazione:
- G.E. Christensen e H.J. Johnson, "Consistent image registration", IEEE MED IM, 20(7), 2001, pp. 568-582
Abstract
This paper presents a new method for image registration based on jointly estimating the forward and reverse transformations between two images while constraining these transforms to be inverses of one another. This approach produces a consistent set of transformations that have less pairwise registration error, i.e,, better correspondence, than traditional methods that estimate the forward and reverse transformations independently. The transformations are estimated iteratively and are restricted to preserve topology byconstraining them to obey the laws of continuum mechanics. The transformations are parameterized by a Fourier series to diagonalize the covariance structure imposed by the continuum mechanics constraints and to provide a computationally efficient numerical implementation. Results using a linear elastic material constraint are presented using both magnetic resonance and ii-ray computed tomography image data. The results show that the joint estimation of a consistent set of forward and reverse transformations constrainedby linear-elasticity give better registration results than using either constraint alone or none at all.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/06/13 alle ore 00:25:02