[Insight-users] Mattes Mutual Information implementation

[Christopher Mullins]

*"This class in not thread safe due the private data structures used to the
store the sampled points and the marginal and joint pdfs." [1]*
*
*
*[1] *
http://www.itk.org/Doxygen314/html/classitk_1_1MattesMutualInformationImageToImageMetric.html


On Tue, Mar 12, 2013 at 4:50 PM, Rick Frank <rfrank at dominionsw.com> wrote:

> What is the reason it is not thread safe?
>
> Rick Frank
>
> On Mar 12, 2013, at 2:10 PM, "Tim Allman" <dr.tim.allman at gmail.com> wrote:
>
> I have been living with mutual information day and night for  a while. You
> can get more information about Normalised MI in D. Rueckert et al. IEEE
> Trans. Med. Imag., 18 712 (1999) and Mattes MI in Mattes et al IEEE Trans.
> Med. Imag., 22 120-128 (2003) and references contained therein.
>
> If you understand the methods in the papers, the ITK classes start to make
> sense in spite of the poor documentation. It is undocumented but true that
> Mattes MI is not thread safe so you must set the number of threads it uses
> to 1. I don't know about the other.
>
> Tim
>
> On 13-03-12 01:26 PM, Pedro Morais wrote:
>
> Good afternoon,
>
>  I'm working with Mattes Mutual Information to register a MRI sequence.
> Someone can send me some information about Mattes Mutual Information
> implementation, there are a lot of parameters but I think that the
> documentation is not enough.
> I don't understand what is the difference between the Normalized Mutual
> Information and Mattes Mutual Information. I need to decide between the two
> methods, but I need to know the advantagens of each technique.
>
>  Thanks for the help.
>  --
> Kind Regards,
>
>  Pedro Morais
>
>
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> --
> Tim Allman, Ph.D.
> 35 Margaret Street,
> Guelph Ontario N1E 5R6
> Canada
>
> <dr_tim_allman.vcf>
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-- 
Christopher Mullins
R&D Engineer
Kitware Inc.,
919.869.8871
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