We have used a twelve degrees of freedom global affine registration technique incorporating a multiresolution optimisation of mutual information to register MR and CT images with uncertain voxel dimensions and CT gantry tilt. Visual assessment indicates improved accuracy, without loss of robustness compared to rigid body registration.
CITATION STYLE
Studholme, C., Little, J. A., Penny, G. P., Hill, D. L. G., & Hawkes, D. J. (1996). Automated multimodality registration using the full affine transformation: Application to MR and CT guided skull base surgery. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 1131, pp. 601–606). Springer Verlag. https://doi.org/10.1007/bfb0047003
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