[Insight-users] Complexity of the metric?

[Bill Lorensen]

Depends on the metric. Some statistical metrics sample a fixed number
of samples. Look at the mutual information metrics.

On Fri, Dec 11, 2009 at 3:22 PM, motes motes <mort.motes at gmail.com> wrote:
> As I understand the metric is the most expensive part of the image
> registration process. I assume that this follows from the fact that it
> is linear in the number of voxels, meaning that if a volume has m*n*p
> dimensions the number of computations of the metric is m*n*p. When
> m=n=p is it then correct to say that the complexity of the metric is
> O(n^3) ?
> _____________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Kitware offers ITK Training Courses, for more information visit:
> http://www.kitware.com/products/protraining.html
>
> Please keep messages on-topic and check the ITK FAQ at:
> http://www.itk.org/Wiki/ITK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.itk.org/mailman/listinfo/insight-users
>