This is a 12-dof registration, using both brain and skull images, with the skull images used to determine the scaling component of that.

On 7 Jul 2010, at 15:56, Anna Barnes wrote:

When SIENA does the co-registration between image 1 and image 2 based on the skull does it just use a 6 parameter rigid body or a 7 parameter transform.

thanks
Anna

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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre

FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
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