Diffusion maps for multimodal registration
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- dc.contributor.author Piella Fenoy, Gemmaca
- dc.date.accessioned 2016-02-18T15:44:42Z
- dc.date.available 2016-02-18T15:44:42Z
- dc.date.issued 2014
- dc.description.abstract Multimodal image registration is a difficult task, due to the significant intensity variations between the images. A common approach is to use sophisticated similarity measures, such as mutual information, that are robust to those intensity variations. However, these similarity measures are computationally expensive and, moreover, often fail to capture the geometry and the associated dynamics linked with the images. Another approach is the transformation of the images into a common space where modalities can be directly compared. Within this approach, we propose to register multimodal images by using diffusion maps to describe the geometric and spectral properties of the data. Through diffusion maps, the multimodal data is transformed into a new set of canonical coordinates that reflect its geometry uniformly across modalities, so that meaningful correspondences can be established between them. Images in this new representation can then be registered using a simple Euclidean distance as a similarity measure. Registration accuracy was evaluated on both real and simulated brain images with known ground-truth for both rigid and non-rigid registration. Results showed that the proposed approach achieved higher accuracy than the conventional approach using mutual information.ca
- dc.description.sponsorship This research was partially funded by the Spanish Ministry of Economy and Competitiveness (under project TIN2012-35874).
- dc.format.mimetype application/pdfca
- dc.identifier.citation Piella G. Diffusion maps for multimodal registration. Sensors. 2014;14(6):10563-10577. DOI: 10.3390/s140610562
- dc.identifier.doi http://dx.doi.org/10.3390/s140610562
- dc.identifier.issn 1424-8220
- dc.identifier.uri http://hdl.handle.net/10230/25895
- dc.language.iso engca
- dc.publisher MDPIca
- dc.relation.ispartof Sensors. 2014;14(6):10563-10577.
- dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/TIN2012-35874
- dc.rights © 2014 by the author; licensee MDPI, Basel, Switzerland. This article is an open access article/ndistributed under the terms and conditions of the Creative Commons Attribution license/n(http://creativecommons.org/licenses/by/3.0/).ca
- dc.rights.accessRights info:eu-repo/semantics/openAccessca
- dc.rights.uri http://creativecommons.org/licenses/by/3.0ca
- dc.subject.keyword Diffusion maps
- dc.subject.keyword Spectral geometry
- dc.subject.keyword Diffusion distance
- dc.subject.keyword Multimodal registration
- dc.title Diffusion maps for multimodal registrationca
- dc.type info:eu-repo/semantics/articleca
- dc.type.version info:eu-repo/semantics/publishedVersionca