Alexander, D.C. and Pierpaoli, C. and Basser, P.J. and Gee, J.C. (2001) Spatial transformations of diffusion tensor magnetic resonance images. IEEE Transactions on Medical Imaging , 20 (11) pp. 1131-1139. 10.1109/42.963816.
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Abstract
The authors address the problem of applying spatial transformations (or “image warps”) to diffusion tensor magnetic resonance images. The orientational information that these images contain must be handled appropriately when they are transformed spatially during image registration. The authors present solutions for global transformations of three-dimensional images up to 12-parameter affine complexity and indicate how their methods can be extended for higher order transformations. Several approaches are presented and tested using synthetic data. One method, the preservation of principal direction algorithm, which takes into account shearing, stretching and rigid rotation, is shown to be the most effective. Additional registration experiments are performed on human brain data obtained from a single subject, whose head was imaged in three different orientations within the scanner. All of the authors' methods improve the consistency between registered and target images over naive warping algorithms.
| Type: | Article |
|---|---|
| Title: | Spatial transformations of diffusion tensor magnetic resonance images |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/42.963816 |
| Publisher version: | http://dx.doi.org/10.1109/42.963816 |
| Language: | English |
| Additional information: | ©2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
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