Publications (2)0 Total impact
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Conference Proceeding: Non-Rigid Motion Estimation and Spatio-Temporal Realignment in FMRI
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ABSTRACT: Existing approaches to the problem of subject motion artefacts in FMRI data have applied rigid-body registration techniques to what is a non-rigid problem. We propose a model which can account for the non-linear characteristics of movement effects, known to result from the acquisition methods used to form these images. The model also facilitates the proper application of temporal corrections which are needed to compensate for acquisition delays. Results of an implementation based on this model reveal that it is possible to correct for these effects, leading to accurate re-alignment and timing correction.Computer Vision and Pattern Recognition Workshop, 2004 Conference on; 07/2004 -
Article: Advances in functional and structural MR image analysis and implementation as FSL2
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ABSTRACT: The techniques available for the interrogation and analysis of neuroimaging data have a large influence in determining the flexibility, sensitivity, and scope of neuroimaging experiments. The development of such methodologies has allowed investigators to address scientific questions that could not previously be answered and, as such, has become an important research area in its own right. In this paper, we present a review of the research carried out by the Analysis Group at the Oxford Centre for Functional MRI of the Brain (FMRIB). This research has focussed on the development of new methodologies for the analysis of both structural and functional magnetic resonance imaging data. The majority of the research laid out in this paper has been implemented as freely available software tools within FMRIB's Software Library (FSL)Neuroimage. 01/2004; 23 Suppl 1.
Institutions
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2004
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University of Oxford
Oxford, ENG, United Kingdom
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